AVO
Signal generator Type TFM
Bench mounted Signal generator
Manufacturer
:- Automatic Coil Winder and Electrical Equipment Co, Douglas Street,
London
Brand
:-AVO
Power
:- External Main supply 240VAC
Ranges:-
8 Frequency ranges
Modulation
AM and FM
Approx
8Mhz to 200Mhz higher on harmonics
Fully functional and used
Source:-
My own collection
Donated by the son of a deceased colleague
Donated by the son of a deceased colleague
I have one of these and have just started getting it going again. So far it generates up to 85MHz, but then stops, making me worry about the EC70 triode oscillator valve which is pretty hard to find and is wired-in and looks hard to change, even if I can find one. The unit is typical AVO build - designed as if it will never go wrong, so no need for serviceability. The Manual is one of the worst I've ever read from Avo, the circuit description not referencing which valve or component does what. Wish me luck! If anyone has experience of this machine, I'd love to hear from you. Roger Walker
ReplyDeleteTry looking at the HT rail Voltage and smoothing, kind regards Ray
ReplyDelete