Rare Electronic Components

Apex PA82J High Voltage Amplifiers

±150V operation - ±15mA output current - low bias current -  FET input - for high impedance buffers,  deflections, power supplies to ±145V, computer to vacuum tube interfaces, bio stimulators.

15 pcs available  –  new

€73.00 * 1,

€60.00 each * 4+,

€50.00 each * 8+

Low Frequency Quartz Crystals, 10-50-100 kHz, HC-13/W package

Real calibrator quartz crystals, not ceramic filters.

The 10kHz sample is in HC13-Tall package (2").

1 ~ 2 pcs per frequency available  –  used

€16.00 * 1,

€40 for set of 3 pcs

Virgin 6" Silicon Wafers

Standard pure crystalline silicon wafers for IC production, used for metrology trials. Clean mirror surface, without oxidation.

They will be mailed in their own original protective boxes.

4 pcs available

€20.00 * 1,

€16.00 each * 2+

Gold Sputtered 6" Silicon Wafers

They come from an engineering lot of wafers for professional inkjet printer heads. Not laser-drilled and without nozzles, they are an interesting example of silicon microfluidic application. Differently from standard wafers, they are gold plated: free from oxidation, they can be exposed to open air. Mailed in their own original boxes.

2 pcs available

€60.00 * 1,     €100.00 * 2

Brown Boveri TS 2 dual coil relay

Requires octal socket.

1 pc  –  apparently new

€12.00

GE PH/200T10P-120V lamp

120V 200W special lamp for lab instruments and projectors, clear top, with original box and instructions.

2 pcs  –  new

€16.00 * 1,

€30.00 * set of 2 lamps

Vintage USSR made resistors

Original and still sealed carton boxes, dated 1969.

I offer the whole boxes, not the single resistors.

3 boxes available  –  new:

- 100pcs 1.5 10% 1/8W,

- 100pcs 1.8M 5% 1/2W,

- 200pcs 150k 5% 1/2W

€30.00 * 1 box, €70.00 * 3 boxes

14-pin DIP IC Sockets for Wire Wrapping (long pins), gold plated

Not-so-easy to find in normal shops and usually rather expensive. Perfect conditions.

240 pcs  –  new; sold in groups of 24 pcs

€4.00 * set of 24 pcs

Kingston XVR133X64C2/256 PC Memory modules

256MB 64-Bit PC133 168-Pin DIMM

30 pcs  –  new

€3.00 * 3,

€0.80 each * 12+

Vintage Integrated Circuits

Intel P4265 (1976)

Intel P8085

Intel P8279-5

Intel P8155H

Intel D4040 (1974, ceramic)

Intel P8051 AH (1980)

Intel D4289 (1975 ceramic)

Intel P4002-1

SGS Ates LS301AT

2 pcs  –  new

ST LM338K

6 pcs  –  new

Zilog and SGS Z80PIO (1987)

Zilog Z80CTC (1987)

Zilog Z80CPU (1988)

Mostek MK48Z02B-20 (1987)

Dallas DS1220Y (1988)

1 to 4 pcs each  –  used (socketed)

2N3525 Silicon Controlled Rectifiers (SCR)

TO66 package, 5A rms forward current, 400V forward breakover voltage.

5 pcs  –  new

€3.00 * 1,

€12.00 * 5

Germanium Transistors

50+ pcs  –  new

Ask for quotation 

I have some rare, used or unused electronic components, coming from laboratories or unsold stocks, usually very few samples.

I have been collecting them playing with electronic stuff since when I was 11. Please note that I am an individual selling excess hobby related items and this is not an internet shop: I offer only the samples listed in this webpage.

Please do not send requests of unlisted material.

Images have been resized. For a better view right-click on them and select "View Image".

I buy or exchange this material with Germanium Transistors (series AC, AF, AD, OC, MP, CK, SB and older, including point of contact samples).

Please note that I do not ship material to - and I do not buy components from - the following Countries:

- Russia

Российским клиентам вход воспрещен: их не будут обслуживать.

לקוחות ישראלים מוזמנים: הם יקבלו מתנה.

For any inquiry on mailing cost, cumulative orders, availability of items and delivery date please send me a message before placing orders.

More pictures can be provided upon request.

Orders can be placed with Paypal to my account

 roberto.barbon.italy@gmail.com.

Items are generally mailed within 15 days from payment.

Last updated: September 29, 2025