timmy
11-09-2014, 08:39 AM
hey all, is there any substitute cap i can use in place of a 6pf 50 volt or even 100 volt disc cap like in uf range and:scratch2: cap type ?
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View Full Version : 6pf disc cap timmy 11-09-2014, 08:39 AM hey all, is there any substitute cap i can use in place of a 6pf 50 volt or even 100 volt disc cap like in uf range and:scratch2: cap type ? N2IXK 11-09-2014, 09:03 AM Why not just buy a 6 pF 50 V cap? Not like they break the bank... http://www.taydaelectronics.com/capacitors/10-x-6pf-50v-ceramic-disc-capacitor-pkg-of-10.html timmy 11-09-2014, 09:05 AM well i have dozens of all kinds of caps and with this set at this point i just want to get it back in the cabinet for now. dtvmcdonald 11-09-2014, 09:29 AM What kind of application? For most applications a parallel or series combination of ceramics or micas will work. Remember that it does not have to be 50 or 100v ... 500 or 600 or 1000 volt will do fine. Now if its in a UHF TV tuner size may matter. Paul Knaack 11-09-2014, 09:29 AM Do you have a radio shack nearby? They don't have much, but they do list it. http://www.radioshack.com/nte-8906d0-6pf-50v-ceramic-disc-capacitor/55047531.html timmy 11-09-2014, 09:34 AM the problem is i live in kind of the sticks and radioshack only has 100pf and the shack has it online and i didnt want to have to wait a week for it if i were able to sub it. the circuit is chroma reference osc and its location is c121 on the sams ctc12 clone. jr_tech 11-09-2014, 12:31 PM Make a "gimmick" perhaps ?? http://www.youtube.com/watch?v=v1wWL6TGWOE jr Phil Nelson 11-09-2014, 01:46 PM For most applications a parallel or series combination of ceramics or micas will work.Here is how I temporarily replaced a 5pf cap in one my TVs: http://antiqueradio.org/art/RCA721TCSMicaReplacement.jpg Four 22pf caps in series gave me about 5.5pf. Not beautiful, but it worked fine. Basically, wiring two of the same caps in parallel doubles their capacitance, and wiring them in series divides it in half. (That's the "shade tree mechanic" version of the formula, anyhow.) If you have lots of caps lying around, maybe you can come up with something that works for the time being. Phil Nelson Phil's Old Radios http://antiqueradio.org/index.html |