UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - Help ID 1932 Pye radio-phono

MrCurvedLimos · 28th Feb 2017, 10:45 pm

Just reading through the data sheet.

The correct tube lineup is given as DC2/SG VM, DC3/HL, DC2/Pen. You were right Sam!

And I was wrong. It does not have an AC/S1 VM in it. These spray shield Mazda tubes are so hard to read, the only way I succeed is with heavy image processing. I was being lazy, looked at the tube, and thought, "Oh, that looks just like the AC/S1 VM in my other radio," and made the wrong assumption. When I do the image processing, look what results! It's a DC2/SG VM.

The series string for the heaters includes 3 coils also, and it seems the total drop of the string is ~200V. So I'm confused that my unit appears to have some adaptation for 110V. Maybe the string is split in half somehow. I will have to dig into it more, trace some wires around.

28th Feb 2017, 10:45 pm	#12
MrCurvedLimos Diode Join Date: Feb 2017 Location: Seattle, Washington, USA. Posts: 4	Re: Help ID 1932 Pye radio-phono Just reading through the data sheet. The correct tube lineup is given as DC2/SG VM, DC3/HL, DC2/Pen. You were right Sam! And I was wrong. It does not have an AC/S1 VM in it. These spray shield Mazda tubes are so hard to read, the only way I succeed is with heavy image processing. I was being lazy, looked at the tube, and thought, "Oh, that looks just like the AC/S1 VM in my other radio," and made the wrong assumption. When I do the image processing, look what results! It's a DC2/SG VM. The series string for the heaters includes 3 coils also, and it seems the total drop of the string is ~200V. So I'm confused that my unit appears to have some adaptation for 110V. Maybe the string is split in half somehow. I will have to dig into it more, trace some wires around. Attached Thumbnails