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I have been slowly rebuilding the cap blocks and restuffing the paper caps on my 116B.
My question is can I use an .001 cap to replace the 1250uuf. cap? It is a typical tubular cap. #40 on the schematic which says it is a .00125. It is connected btwn. the 77det. and 76 osc. cathodes. Thanks
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If you have a capacitance meter you could hand select from your stock and get one as close to .00125 as possible or a 1200pf in parallel with a 50pf would do the job just dandy.
Gregb
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I'd be a little surprised if it is a paper cap. Typically if the value is in the uufd or mmfd and that it's in the rf section I'd bet it's a mica or perhaps a tubular ceramic.
Value wise don't know that you need to be dead on as it's coupling the osc output to the mixer. 50pf or so +/- probably isn't going to matter.
I would leave it. Not much voltage there, if it's shorted or or open it will cause the mixer to work won't burn out anything.
Terry
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Thanks for the replies. that's what surprised me its a tubular paper cap about 2inches long. the part# on the cap is 30-4336p. I couldn't find that 3 on the philco capacitor parts value list. I was hoping to restuff it like the others. It is part number 40 on the schematic. I will try to post a picture.
(This post was last modified: 02-22-2016, 08:42 PM by
KCMike.)
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Here is a pic of the under chassis. It is the cap at about 11 o'clock straight up from the large wire wound resistor
[Image: http://i1336.photobucket.com/albums/o654...nw4vzf.jpg]
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I used a .0015uf tubular from Just Radios in my 116X restoration.
Crist
(This post was last modified: 02-23-2016, 12:49 AM by
Crist Rigotti.)
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Thanks Crist. I Think I will just leave it in for now like Terry suggested and make a note so if I encounter problems later I can revisit it. Side note; really enjoy working on this one.
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(02-22-2016, 09:23 PM)Mike Wrote: Thanks Crist. I Think I will just leave it in for now like Terry suggested and make a note so if I encounter problems later I can revisit it. Side note; really enjoy working on this one.
Gotta love those tar filled beauty's. Finished my 16B cath awhile back 13 all total.
