Where are radio components containing precious metals accepted?

Explanation to the List of radio components containing precious metals

It is worth noting that this List is far from exhaustive. We try to add new purchased items to the list, which is reflected in our catalog with photos and prices for expensive radio components of Soviet and imported production in the relevant sections of the site.

You can sell valuable radio components of the USSR for radio scrap, new and used, containing precious metals at competitive prices today by contacting our company. We have been cooperating with private individuals for more than 6 years, reliably. The exact cost of Soviet radio components depends on the quantitative content of precious metals in them, the year of manufacture, acceptance conditions (military or civilian acceptance) and the manufacturing plant.

We also purchase modern radio components of imported and domestic production: capacitors, microcircuits, transistors, connectors, relays and other electronic components.

What technology contains gold, silver and more?

Soviet Elbrus computers can contain up to several kilograms of gold!
Computers are also a source of precious metals. Capacitors, as well as microcircuits, connectors and other elements are all suitable for refining.

For example, if you take a computer such as Elbrus-1-KB, then it contains 2.668 kg of gold, over 7.7 kg of silver, about 260 g of platinum and up to 640 g of palladium. But the ShK-1700.02601 computer contains about 1.4 kg of gold, about 1.7 kg of silver, about 83 g of platinum and up to 16 g of palladium.

Domestic personal computers are less rich in precious metals. For example, platinum and palladium range from 0.08 to 0.3 g, and gold and silver – 5-11 g.

In foreign computer technology, the processor, which is made in a lilac case, is of interest. A large amount of gold is found in such devices.

Not only computers, but also cell phones contain precious metals. In addition to tantalum, you can find up to 0.01 g of palladium, about 0.025 g of gold and 0.25 g of silver. Additionally, copper, aluminum and other non-ferrous metals can be extracted.

From less than fifty outdated cell phones, they extract as much gold as is obtained from 1 ton of ore during industrial mining.

Printers contain gold-plated contacts that can be found on the print head, as well as in cartridges and photosensitive elements. But their content is small, gold no more than 0.01 g, and silver no more than 1 g.

Capacitors

Capacitors containing precious metals:

• Monolithic ceramic capacitors of the following series: KM3, KM4, KM5, + KM6, K10-17, K10-26, K10-48.
• Capacitors in a plastic case: K10-17, K10-23, K10-28, K10-43, K10-46, K10-47.
• Capacitors KM5 of the H30 group, green in color, are capacitors on which “H30” is clearly written.
• We buy Soviet frameless capacitors of all sizes, do not mix imports, it’s immediately obvious.
• We currently do not accept imported open-frame capacitors.
• Imported capacitors of certain brands (see photo catalogue).
• Tantalum capacitors of the following series: K52-9, ET, ETN, K53-1, K53-7, K53-16, K53-18, K53-28.
• Capacitors K50-6, K50-12, K53-4, K53-14, K53-21, K71-7, K73p-2, K73-3, K73-9, K78-2 and the like are not suitable, we do not buy them.
• Silver-tantalum capacitors: K52-1, K52-2, K52-5, K52-7, ETO-1, ETO-2.
• Capacitive assemblies B-18, B-20, pass-through filters B-23, MLZ delay lines, micromodules, GIS.

The most valuable imported and Soviet parts

Soviet-made parts, as mentioned above, a priori contain more valuable elements than similar products coming off foreign assembly lines .

The largest amount of the first four noble metals is contained in capacitors, both domestic (USSR) and foreign (the difference to a lesser extent is insignificant).

If we talk about which domestically produced capacitors contain precious metals, then the parts of the “KM” series marked “N30” and “5D” are in greatest demand.

For those who have no idea what Soviet capacitors contain precious metals, there is a photo below.

It is these “green” and “red” elements
that contain the most gold, platinum , as well as silver and palladium.
Among the imported ones, the following are especially valued:

• "Tesla" of different sizes;
• “Conders” of the “KbC” MbC series marked “220n” (analogue of domestic K10-17);
• TaSF B45176-A1108-K (analogue of K53-1);
• MIL-ETAH2 (analogue of K52-1).

Licensed enterprises accept capacitors with this marking at almost the same price at which they buy products from the era of developed socialism .

Generator lamps of the GI, GMI, GS, GU series

Lamps containing precious metals.

• GS-23B, GS-36B, GI-19B, GMI-2B, GMI-4B, GMI-5, GMI-6, GMI-6-1, GMI-7, GMI-7-1, GMI-10, GMI- 11, GMI-14B, GMI-19B, GMI-21-1, GMI-24B, GMI-26B, GMI-27A, GMI-27B, GMI-32B, GMI-32B1, GMI-38, GMI-42B, GMI- 83V, GMI-89, GMI-90
• GU-19-1, GU-29, GU-34B, GU-34B1, GU-43A, GU-43B, GU-50, GU-70B, GU-71, GU-72, GU-73B, GU-73P, GU-74B, GU-78B, GU-84B
• GKD1-600/5, TGI1-2500/50, TGI1-2000/35, LI-604 K-1, LI-705, LI-702-1, LI-703, 5 MHz resonator, Quartz K3, RR-7 arrester, Klystron K-12, Klystron K-351, Klystron K-352
• We buy generator lamps manufactured before 01/1991. The price of lamps is influenced by the presence of the diamond sign and a number of other factors.
• We do not buy radio tubes from USSR TVs without packaging or used radio tubes. More details on the “Lamps” page.

Availability and quantity in various elements

Diverse in their functional load and design features, the parts that form the basis of household, industrial, military, high-precision (scientific) electronics are of interest to any enterprising person involved in refining.
Naturally, we are talking about devices that have lost practical interest.

In this regard, it is worth noting that the amount of precious metals in each element, for example in transistors, varies relative to the marking and series of the radio component.

Some elements may contain, for example, only the “yellow” metal and its younger brother, while others may contain platinum and palladium.

To understand what radio components to purchase from the population, we bring to your attention tables that indicate almost all devices that contain precious metals.

Capacitors

The amount of precious metals in the table is indicated in grams (g) based on the content of valuable elements in 1 thousand devices. The content of precious metals is indicated as actual, and not as indicated in the device passport.

Capacitors can be found in almost any household electrical equipment, feedback circuits, oscillating circuits, power filters, etc.

Due to its functionality , “conder” is used in photo flashes, electromagnetic accelerators, lasers, etc.

Microcircuits

In microcircuits, the “yellow” metal and its less expensive “relative” predominate.

The platinum group, led by the element that gave its name to this category of precious metals, is found extremely rarely and in such small quantities that “the game is not worth the candle.”

The ratio of the content of precious metals and the number of units of microcircuits is identical to the previous proportion - g/1000 pcs.

Transistors

Relay

This element (RES) is used for switching power lines. Relays are used everywhere in the energy supply sector , in particular, in various mechanisms, units, and devices. The ratio of the content of precious metals is g/per unit of element.

Radio tubes

Below is a list of radio tubes containing precious metals. The data presented in the table is indicated in the ratio g/1000 pcs. radio tubes

Connectors

To ensure high-quality contacts in various electrical equipment of a household, industrial, military and scientific nature, connectors made of precious metals are used.

Trimmer resistors

Gold is not found in trimmer resistors. But there is silver, platinum, palladium.

Diodes

Here is the ratio gr. in 1 diode.

LEDs

Content of noble metals in LEDs based on g/1000 pcs.

Quartz resonators

The content of precious metals in quartz resonators is presented below.

Generator lamps

The ratio in generator lamps is g/pcs. element.

Resistance

Ratio – gr./1000 units of resistance parts.

Boards

These elements are widely used in mobile devices and computing. In particular, in “ancient” computers and modern computers . And not only in the form of motherboards.

Also of interest are boards for system units, video cards (graphics processors), etc. The ratio of the presented elements is g/one unit of production.

Microswitches

Ratio – 1 g. in one microswitch.

Circuit breaker

This type of device contains only silver. Therefore, we present the most interesting devices from the point of view of refining in the form of a list (ratio – g/1 unit of product):

• A3120 sea – 17.8033;
• A3120 tropics – 16.87212;
• A3123 3xplus – 17.1609;
• A3124 3xplus and A3124/7 3xplus – 17.389;
• A3114/7 3xplus – 11.9184.

Considering that silver is the cheapest element of the four precious metals popular for “mining,” circuit breakers are an unattractive device.

Thyristors

Contents – gr. in 1 thyristor.

Galet switches

The ratio of precious metals in biscuit switches is g/pc.

Read more about where gold is found here. You may also be interested in information about the palladium content in radio components.

Microcircuits

Microcircuits containing precious metals.

• Microcircuits of Soviet and imported production in round, ceramic, planar, DIP, packages of certain series.
• Microcircuits in a plastic case of domestic production 155 series and the like.
• We currently buy Soviet 580 series microcircuits in a black “large” plastic case with white pins. Price up to 500 rubles/kg
• We do not buy microcircuits in a ceramic case with nickel-plated terminals (legs), later we will buy them as nickel scrap.

TRANSISTORS

• 2T(KT)117 G
• 2T 203 (A, B)
• KT 203 B
• 2T208(A, B, V, D)
• KT3102A, B, G
• 2T(KT)3117A
• 2T312V
• KT312V
• 2T312B
• KT312B
• KT 312 B (yellow)
• 2T313(A, B)
• KT313A, B
• 41 C 8
• KT501 I
• KS 508
• BSAR 77 A
• WE WN (imported)
• ZEX2 (5, 7) (imported)
• 2U(KU)101 (A, B, E, G)
• AOT110A
• P 309
• KT 505 series
• Series 2T6 551
• KT(2T)603(A,B)
• 2T 603 A (white)
• KT(2T)608(A,B)
• KT 608 B (white)
• 2T 635 A
• 2Т6 821
• 2T831 B(830 B)
• TESLA KRU 18 (imported)
• TESLA KRU 18 (imported)
• TESLA KF 508 (imported)
• TESLA KF 517 (imported)
• SSY 20 V (imported)
• SF 129 C (imported)
• SF129C (imported)
• SF129C
• MP 13, 14, 15,20,21,26
• 1T308(A, B, C)
• 1T403G(GT403G)
• P416A
• 2T(KT) 602 B (yellow)
• 2T(KT) 602 A, B (white)
• Series 13В44.87ХЗ, 19С17
• KT 909 B
• KT(2T)914A
• Transistors in a metal-plastic case
• Series 800
• Series 900
• Transistors

Connectors

Connectors containing precious metals.

• Domestic-made connectors of all series only with yellow contacts!
• Domestic connectors in plastic cases do not need to be disassembled, since the connector body is marked with the year of manufacture. This directly affects the price of connectors.
• Contacts (ligature) from domestic connectors with yellow coating of contact parts, including round connectors 2RM, ShR, SNTs, ONTs and the like in aluminum cases.
• All connectors with silver-plated (white) contacts must be disassembled into ligature; we do not buy these connectors in their entirety. The ligature is the contacts removed from the connector body.
• Imported connectors of certain brands with completely yellow contacts.
• We do not buy connectors from motherboards and similar connectors in their entirety; they must be disassembled into contacts (ligature).
• Yellow and gray (steel) colored lamellas from domestic and imported boards.
• Silver plated slats are not suitable for sale. Silver-plated lamellas, as a rule, are also partially covered with a black coating (oxide).
• For additional information on these radio components, see the “Connectors” page.

Refining of radio components

Enterprising people can engage in artisanal refining of VDM - that is, the etching of precious metals from various objects and recycled materials in domestic conditions.

For this purpose, several methods of “extraction” of noble elements of the periodic table are suitable - electrolysis and the “wet” (chemical) method.

The first option requires sulfuric acid as an electrolyte, a piece of lead or iron for the cathode, and an alternating current source.

The second option will require the same sulfuric as well as nitric acid to prepare a thermonuclear mixture with the attractive name “Royal Vodka”. For example, the mixture is applicable for the extraction of palladium from parts.

More detailed information on the types of VDM cleaning and process technology can be obtained from the article Refining of radio components.

The main thing is to remember that any method of artisanal “extraction” of precious metals from electronic scrap is extremely dangerous.

Therefore, the availability of personal protective equipment is a mandatory condition for refining VDM.

Switches, toggle switches, buttons

Switches containing precious metals.

• PG2, PG5, PG7, PR1, PR2, PM2-1, PkP2-1, PKN4-1, P2KnTA, PK1S, PK1E, PK2S, P1T3-1V, P1T4-1V, P1M9-1V, P1M11-1, P1M12-1, PT 2-40, PT 3-40V, PT 33; 55, PKn-2.4-1V, PM2-1V, PKn-4-1V, PT 8-1V,3V, PT 8-1V,3V, PT 8-1V,3V, PT 8-1V,3V, PT9- 1, PT11-1, PT13-1, PT23-1, PT25-1, PT27-1, MP-12, P1T-1-1, P2T-1-1V, P2T-1,7,14T,19, P2T- 1,7,14T,19, P2T-1,7,14T,19, OSP2T-1,2,7, PKn-8-1V, PKn-8-2V, PKn-8-3V, PKn-8-4V, PKn-19-1V, PKn-105-1V, PKn-107-8V, PKn-115-1V, PKn-125, PKn-150-1, P2Kn-1V,3V and P2KnTA-1,2,3,4V, P2Kn-1V,3V, P2KnTA-1,2,3,4V, P2Kn-1V,3V, P2KnTA-1,2,3,4V, P2KnT3V,T4V, P2KnT1,3,4V, P3PN-20, PP6, PP8, PP9, PP11, PPK-2-20, TV1-2, TV1-4, VBT, VDM, SHIV-25/4, SHIV-50/4.
• The switches and buttons listed are suitable for a specific month and year of manufacture. Certain series of switches were made with white and yellow leads, but are only suitable with yellow leads. With white leads, analysis is required.
• We do not buy switches of the MT series, certain MP series and similar ones in their entirety; they must be disassembled into silver-plated parts.
• Other switches require analysis.

Variable resistors

Resistors containing precious metals.

• SP5-1, SP5-2, SP5-3, SP5-4, SP5-14, SP5-15, SP5-16, SP5-17, SP5-18, SP5-20, SP5-21, SP5-22, SP5- 24, SP5-37, SP5-39, SP5-44.
• SP3-19, SP3-37, SP3-39, SP3-44.
• PP3-40, PP3-41, PP3-43, PP3-44, PP3-45, PP3-47.
• We buy the listed series of resistors, except for PP3-40 and similar ones, until 1990, after which it is necessary to check for suitability, since not all are suitable.
• Resistors SP3-39 need to be disassembled; we buy them with a steel-colored slider. They don't fit with a copper runner, we don't buy those.
• We do not buy all other resistors with markings that begin with SP3-0, SP3-3, and so on.
• Resistors PP3-40, PP3-43 and the like are suitable until 03.92, after this date a check is required, many are not suitable.
• We currently do not buy MLT, OMLT and similar resistors.

Relay

Relays of domestic and imported production containing precious metals.

• RES7, RES8, RES9, RES10, RES14, RES15, RES22, RES32, RES34, RES37, RES48, RES78.
• RP3, RP4, RP5, RP7, RPS3, RPS4, RPS5, RPS7, RPS11, RPS15, RPS18, RPS20, RPS24, RPS32, RPS34, RPS36.
• DP12, RKN, RKNM, RKM-1, RKM-1T, RKM-P, REC43, REN-33, TRA, TRV, TRL, TRM, TRN, TRP, TRT, RTN, TRSM-1, TRSM-2, RVMU- 1, RKP E-506, SK-594, RV-5A, RTS-5.
• The listed relays are not suitable for all, but only with certain passports and up to a certain month and year of manufacture.
• Relays RES-6, RES-22, RES-32 with white contacts in their entirety are not suitable for sale, remove the aluminum case (cover) and check the color of the contacts. If they are white, then cut the contacts.
• We buy relays RES-22, RES-32 in their entirety only with yellow contacts. There is no need to cut the contacts; send or bring relays with intact cases, as there is a marking on the case. And this, in turn, directly affects the price of the relay.
• Relays RES-9 with passports 00 01 and 200 cost 2 rubles/unit.
• When dismantling the RES-10 relay, the external terminals (legs) must be preserved. Without leads, this relay is significantly cheaper.
• We buy relays RES-47, RES-49, RES-60 in their entirety by weight; sending them by Russian Post is not particularly cost-effective. It is possible to disassemble these relays into yellow contact plates and send them in this form. The price in this case will be high.

Do-it-yourself gold extraction

Those interested in recycling can begin work in this direction by collecting gold-containing raw materials. Studying the indicators of radio components, methods of their primary processing and sorting will create a good basis for further work .

The presence of conditions in the home will allow amateurs to engage in practical gold extraction. It is important to know:

1. About the dangers of working with toxic and caustic substances, about safety precautions.
2. On the technology of laboratory work in chemistry.
3. About legal methods of collecting raw materials and marketing the resulting metal.

The basic condition for working in the field of precious metals recycling is compliance with the law .

The only easiest and safest way to work in the field of precious metals recycling is to cooperate with a registered company that knows and complies with the requirements of the laws.

Independent work can be carried out on assignments from a company where the consumer can return a valuable device for recycling.

You can read more about practical work in the field of self-extraction of gold from radio components here.

Experience, understanding of processes, the ability to rationally approach chemical operations, as well as information about which parts contain gold will allow you to obtain sufficiently pure metal above 950 purity.

Printed circuit boards with radio components suitable for scrap

• We don’t buy all the cuttings from boards, only suitable radio components.
• Boards with only 155 series microcircuits (black plastic, white terminals) are not particularly cost-effective to send via Russian Post. If there are not many of these boards (up to 10 units), then send them along with other radio components, we will evaluate them.
• When sending boards with suitable radio components via Russian Post, remove unnecessary heavy parts, for example transformers, capacitors K50-6, K50-12 and other radio components that are not suitable for sale for scrap.

Best regards, team.

The role of precious metals in devices

In the last century, the profitability of using precious metals in radio components, which, in turn, formed the basis for the designs of various instruments, devices, units, equipment, etc., was

This was facilitated by the properties of precious elements - high conductivity and oxidation resistance.

The first quality improved the performance of the device itself . Especially high-precision instruments that were used in the military-aerospace sector, the medical industry and a number of other areas.

The second characteristic significantly increased the service life of the same devices without loss of functionality.

Every year the planet “throws” 50 million tons of waste in the form of electronic and radio equipment into landfills, while only 5% of this “garbage” is recycled - processed for the purpose of “extracting” VDM.

Statistics eloquently show that this market can be