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Nederlands Forum over Oude Radio's |
Re: Philips 834A repair advice required
Geschreven door Mike Horne op 23. Jun 2005 20:59:23:
In reactie op: Re: Philips 834A repair advice required geschreven door Nico den Haak op 22. Jun 2005 10:07:03:
Hi. Many thanks for your reply. I have a pin to insert in the socket marked "R", but it is quite loose in fitting, and I am not sure if it is actually activating the switch. I might also check the 2meg ohm resistor that couples the wiper of the wirewound potentiometer to the first r.f tube. Usually resistors of this value have a tendancy to go open circuit, or go well out of tolerance. I will let you know if I am successful.
The Mullard tubes that are used in the U.K version of this set are
MM4V, S4VB,(both r.f amp) 994V,(audio preamp PM24A.(output) The rectifier is type 1821. All are extremely hard to obtain here.
Best regards
Mike Horne
- Re: Philips 834A repair advice required Nico den Haak 25.6.2005 11:52 (0)