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Audio output Triodes II

B210H British Thomson-Houston detector and low frequency amplifier triode valves

BTH B210H boxed MINT GBP 120 pair.

B4 BTH BBC – R Marconi BBC – Radion Special Detector – Moorhead type B all top pip all ‘colour’ rare valves

B4 BBC BTH £ 250

R Marconi BBC £ 500

Radion Special £ 500

Moorhead type B £ 600

Ca Siemens & Halske – Tekade 4K60 RE604 – REN2204 Telefunken – EVE173 Telefunken

Tekade (branded Symphony) type 4K60 GBP 150.

Siemens & Halske type Ca of 1928 GBP 250.

Telefunken REN2204 double triode early type GBP 150.

Pair Telefunken EVE173 GBP 500 pair.

D.E.R. Marconi Osram MO-V top pip – BTH British Thompson Houston B5

DER Marconi Osram Top Pip black base £ 200 pair.

DER Marconi Osram Top Pip nickel base £ 300 pair.

B5 BTH British Thompson Houston £ 120 pair.

De Forest Audion D-0IA white base top pip – DFA4 Mullard pair – Nowak 202N Audion

Mullard DFA4 audio voltage amplifier £ 180 pair.

Nowak Audion 202N power amplifier valve £ 100.

Audion Deforest type D-OIA white base circa 1924! £ 300 pair.

DE3 pair Marconi – Amplion AML2/30 – Electron 404 – D3 Mullard – Ediswan PV6DE pair

Marconi DE3 £ 200 pair.

Amplion type AML2/30 £ 75.

Electron 404 £ 50.

D3 Mullard £ 75.

Ediswan PV6DE £ 120 pair.

DE4 BBC Osram – Voltron LF – Mullard R – Voltron HF -Mullard BBC HF red band – Mullard BBC LF Green band – BTH Pip

DE4 BBC £ 150

Voltron LF pairs top pip receiver valves top pip £ 100 pair

Mullard 2 Volts R type same date of ORA very rare top pip £ 100

Mullard BBC HF red band top pip £ 75

Mullard BBC LF green band both HF and LF are bright emitter top pip £ 75

BTH R type top pip £ 100

DE5 Top pip Marconi black base – SP55 Cosmos Red Short Path Metrovick

SP55 Cosmos £ 180 pair.

DE5 Marconi Top Pip £ 300 pair.

DE5 Marconi Top Pip £ 500 quartet.

DE5A Marconi Osram balloon – FER1 Fellows Louden – DE5A Marconi Osram balloon top pip

FER1 Magneto Top Pip BBC red seal £ 300 pair.

DE5A Marconi Osram balloon Top Pip £ 250 pair.