I have collected several European radio triode valves from the 1930s with bases like side contact, B5 and B7. Some with added diodes and top caps. They all have a gain (mu) of 30 or over and I have used them as drivers in my 2a3/300b amps. They sound wonderful and are little known gems, typically collected by radio enthusiasts for renovating old radios. Excellent as a driver stage or a line stage.
I will be offering several in this thread like REN904 types, MH4, AC2, ABC1 and so on. Most are 4v filaments, and there are also 13v/200mA versions. All are tested good. Many are very pretty with their gold or silver metallic coats. I also have a variety of bases like original side contact ones,
since Chinese ones don't work. Contact me for more details.
So to start with here are some AC2 (4v) and CC2 (13v) plus 4D1 (13v). I have several more of each type.
Pair of 4D1 new in box £8
Pair AC2 Tungsram new looking £22
Pair of CC2 new in box, unopened £22
I will be listing many more in this thread. For details PM me or contact performanceandmedia@gmail.com Andy
I will be offering several in this thread like REN904 types, MH4, AC2, ABC1 and so on. Most are 4v filaments, and there are also 13v/200mA versions. All are tested good. Many are very pretty with their gold or silver metallic coats. I also have a variety of bases like original side contact ones,
since Chinese ones don't work. Contact me for more details.So to start with here are some AC2 (4v) and CC2 (13v) plus 4D1 (13v). I have several more of each type.
Pair of 4D1 new in box £8
Pair AC2 Tungsram new looking £22
Pair of CC2 new in box, unopened £22
I will be listing many more in this thread. For details PM me or contact performanceandmedia@gmail.com Andy