05-26-2010, 02:06 PM
I'm new here, and not an electrical engineer. I've been to the Antique Radio Forum regarding my issues, and they sent me here. This is my second Philco (normally I'm a Zenith guy... sorry).
The primary is dead on my audio interstage transformer (part 109 - 32-7057). It uses a 6F6 to drive two 6B4's. I was lucky enough to find a good one at Play things of the Past.
Questions:
1) Should I take the time to protect the primary winding of my new transformer from the 6F6 plate per the Modification A idea on Philco Radio.com?
2) If that is a "yes", I need advice on the size of the plate resistor? By what principle do you size it? I can learn something here!
As my restoration proceeds, I'm sure I'll be back with more questions. But one issue at a time for now.
Thanks in advance
John Shaffer
Honor, MI
PS. I like your Philco sites, and the Schwark schematic stuff.
The primary is dead on my audio interstage transformer (part 109 - 32-7057). It uses a 6F6 to drive two 6B4's. I was lucky enough to find a good one at Play things of the Past.
Questions:
1) Should I take the time to protect the primary winding of my new transformer from the 6F6 plate per the Modification A idea on Philco Radio.com?
2) If that is a "yes", I need advice on the size of the plate resistor? By what principle do you size it? I can learn something here!
As my restoration proceeds, I'm sure I'll be back with more questions. But one issue at a time for now.
Thanks in advance
John Shaffer
Honor, MI
PS. I like your Philco sites, and the Schwark schematic stuff.
