I have used Jakeband teflon sockets for over 3 years. They are very well made and of high quality. Luciano from Jakeband can provide you with any custom socket you may need. This time, I requested a set of sockets for my 813 transmitting valves, a pair of UX-4 for the 300B and a pair of octal sockets for the driver stage.
Jakeband uses the following materials for the socket:
- Tellurium Copper (CuTe) for pins
- Virgin teflon made in Germany
The socket pins are machined with CNC from a solid core copper tellurium CuTe with tolerances within +/- 0.01 mm. The contact surface which is obtained is the highest possible.Thus there is a better grip and and a lower electrical resistance and therefore better heat dissipation (e.g. on the filament pins).
The pins undergo three surface treatments:
- 1° electrolytic acid copper to remove any impurities
- 2° electrolytic silver 99.999% thickness 20 microns
- 3° 24k gold thickness 3 microns to prevent oxidation and give more surface hardness
Why using CuTe pins?
The copper has a conductivity rating of at least 100% IACS (International Annealed Copper Standard). Brass has a conductivity rating of 28% IACS. Tellurium copper(CuTe) contact pin provides up to 320% greater conductivity than a standard brass pin
Pin gold plating
The gold plate is 3 micro-inches thick. It is purely there to prevent oxidation (and increases the surface hardness) however doesn’t contribute to the conductive process. In fact gold is less conductive than tellurium copper. The gold plating is direct, nickel free.
The new sockets come with threaded pins. This is an interesting concept that Jakeband is introducing and will be keen to test various connectors which will simplify the wiring to the socket.
I hope to test the new sockets shortly.
If you want to request them, you can reach out directly to Jakeband using the following form: