Nederlands Forum over Oude Radio´s
Onafhankelijk medium voor liefhebbers en verzamelaars van oude radio´s en gerelateerde zaken


Re: Philips B6SF62A

Geschreven door Henk van den Broek op 20. Nov 2003 18:52:34:

In reactie op: Re: Philips B6SF62A geschreven door MHuetink op 20. Nov 2003 17:33:19:

>Ake,
>have you already downloaded the manual(pdf) on the b6x62a?
>it's probably related to your sf version.
>see radiotechniek.cjb.net.nl
>Good luck! martijn
>
>>Hello,
>>Iam looking for schematic of a Philips radio, Type B6SF62A "Novosonic". It isobviously manufactured in Helsinki/FIN. Serial # 97721 and power rating 65W. Tubes: Ecc85,ECH81, EF89, EF85, EABC80, EM80, EL84,UL41, EZ80. The UL-tube looks exceptional in this family.
>>I'll be happy if somebody could help me to find schematic or advice about this special AF output stage to get it "back to life" again.javascript:S12()
>>2
>>Regards
>>Ake Nyholm
>>Halikko, Finland
----------------------------------
Hello Ake,

The combination UL41 - EL84 makes an Output TransformerLess stage, which uses loudspeaker(s) with high impedance (mostly 800 ohms). The UL41 is in later radiotypes (with OTL amplifier) replaced by the EL86. (EL86 type valve is later introduced in 1956)
The B6X62A is a different design, it has two output amplifiers, one for medium and high tones and one for bass. In this B6X62A each output amplifier has only ONE EL84.
I don't own the schematic of the B6SF62A, and you CAN'T find it on http://radiotechniek.cjb.net/

Maybe you can use the schematic of the B5X61A, which uses the same tubes as your B6SF62A, INCLUDING the UL41. If you are lucky, the chassis is (more or less) the same.
http://radiotechniek.cjb.net/Servicedoc/Documentation/Philips/B5X61A.pdf

Henk




Reacties / Answers:


Terug naar Nederlands Forum over Oude Radio´s