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Linear Mode
BV-613 various questions
morzh
Odobenus rosmarus
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#9

12-20-2013, 02:41 PM
The calculated frequency of this is about 39.7 Hz, but then your caps which are lytics are probably at least 20% tolerance hence your deviation.

Also, the transformer here presents sheer inductance when not loaded, so driving it with switching transistor can present (potentially) a danger of killing the transistor unless each half is shunted with a reverse-biased diode (pretty much as DC relays are). When loaded it is not a problem but then you never know when you accidentally power it unloaded. A snubber wouldn't hurt either.

If it were a sinewave gen that'd be fine but this is a multivibrator.
(This post was last modified: 12-20-2013, 02:42 PM by morzh.)
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Messages In This Thread
BV-613 various questions - by 64EK26 - 11-08-2013, 01:49 PM
RE: BV-613 various questions - by BrendaAnnD - 11-08-2013, 03:33 PM
RE: BV-613 various questions - by 64EK26 - 11-08-2013, 06:27 PM
RE: BV-613 various questions - by BrendaAnnD - 11-08-2013, 07:19 PM
RE: BV-611 restoration - by 64EK26 - 12-19-2013, 03:38 PM
RE: BV-613 various questions - by codefox1 - 12-19-2013, 06:09 PM
RE: BV-613 various questions - by Mondial - 12-19-2013, 10:36 PM
RE: BV-613 various questions - by 64EK26 - 12-20-2013, 01:50 PM
RE: BV-613 various questions - by morzh - 12-20-2013, 02:41 PM
RE: BV-613 various questions - by 64EK26 - 12-20-2013, 04:04 PM
RE: BV-613 various questions - by Mondial - 12-20-2013, 06:03 PM
RE: BV-613 various questions - by 64EK26 - 12-21-2013, 04:15 PM
RE: BV-613 various questions - by Mondial - 12-21-2013, 08:17 PM
RE: BV-613 various questions - by klondike98 - 08-19-2017, 10:45 AM
RE: BV-613 various questions - by Radioroslyn - 08-19-2017, 12:03 PM
RE: BV-613 various questions - by Cesardeluxe - 10-14-2018, 04:03 PM
RE: BV-613 various questions - by Cesardeluxe - 11-05-2018, 07:26 AM
RE: BV-613 various questions - by klondike98 - 11-05-2018, 08:58 AM
RE: BV-613 various questions - by Radioroslyn - 11-05-2018, 12:42 PM



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