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Nederlands Forum over Oude Radio´s |
Re: ATTN: Wouter and Otto
Geschreven door Joe Olszowy op 20. Mei 2003 12:18:26:
In reactie op: Re: ATTN: Wouter and Otto geschreven door Wouter Nieuwlaat op 20. Mei 2003 08:49:39:
>it might be that philips used a common kathode resistor for the two EL84's.
>It would be advisable to split this up, so that each EL84 has its own kathode resistor.
>Also, replace the coupling caps from pre-amp tubes to these EL84's.
>With some luck the B+ voltage will increase considerably,
>giving better sound + reception.
>Greetings Wouter
>>As per your advice I inserted two 6V4 (EZ80) rectifiers into the sockets of the Philips radio and it is now working although it is in need of a good overhaul. I noticed that one of the EL84's plate is turning red as if it is drawing to much current. I will have to look into it for my friend so that he can enjoy his radiogram. Thanks for the help Wouter and Otto.
>>Joe
Wouter if the radio has a common cothode resistor and I split it so each valve has its own do I keep the resistor value the same as it is.
Joe
- Re: ATTN: Wouter and Otto Wouter Nieuwlaat 20.5.2003 14:19 (1)
- Re: ATTN: Wouter and Otto Joe Olszowy 21.5.2003 02:15 (0)