R Mal Well TT22 , lower power version I think, but still well sought after by the valve-audio gang ! Its costal MF RT ? top band , would make a good 160 linear , big push to 500 I would say ? from wh
KT66 was the other valve I was thinking about .........any of those tubes are big £ these days Tubes are ok, my skanti trp5000 has 2 x 4cx250-b with round 2KV on the plates , but those are a fragile
Graham Both valves the same power out but different H voltage, TT21/6.3 TT22/12.6 Used in class C with high voltage, efficiency 80%, this rivals the class D es E. Maybe valves/tubes are the way to go
Talking about valve transmitters. Does anyone recognize this MF VALVE transmitter, One OSC valve, one Stabilizer valve, 2 PA valves and 2 Modulator valves ex Ship MF transmitter CW es MCW es AM modul
Graham The valves are 4 x TT22 plus the osc es reg (B7G es B9A type) Aluminium water proof case, sturdy well built. Ref on front is type NS6MS, cannot see any manufacturer name This TX is in good con
Don't know Mal , but those TT21's if mullard are worth more than the TX ! G.. supported From: mal hamilton Sent: Tuesday, December 18, 2012 3:12 PM To: rsgb Subject: LF: Emailing: more valves 001, mo
