UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - Help to identify old Philips valve radio. BIF 571A.

Mike. Watterson · 17th Jun 2019, 2:51 pm

These may be identical, except for no magic eye.
https://www.radiomuseum.org/r/philips_353a.html
https://www.radiomuseum.org/r/philips_g74a.html

They may be on the sales list on this site.
The audio coupling (g2 to 0V, Anodes to g1, tone controls and on the output transformer) are not very critical in value. Likely they all need replaced and will test perfect for ESR and value. It's the leakage current when more than 100V is on them is the issue.

17th Jun 2019, 2:51 pm	#54
Mike. Watterson Heptode Join Date: Dec 2014 Location: Limerick, Ireland. Posts: 901	Re: Help to identify old Philips valve radio. BIF 571A. These may be identical, except for no magic eye. https://www.radiomuseum.org/r/philips_353a.html https://www.radiomuseum.org/r/philips_g74a.html They may be on the sales list on this site. The audio coupling (g2 to 0V, Anodes to g1, tone controls and on the output transformer) are not very critical in value. Likely they all need replaced and will test perfect for ESR and value. It's the leakage current when more than 100V is on them is the issue.