Trying to make a vision IF and Detector - fun!

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Trying to make a vision IF and Detector - fun!

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AdrianPH

Senior Transmitter Engineer

Posts: 294
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Location: Blackburn with Darwen

#19

21-11-2020, 05:13 PM

If I use the trader sheet 1749 with the 1755. The TV has a HT line of 231 Volts, dropping down to 136 Volts for the tuner via a 3K9 resistor, so just over 24 mA. Which still seems a lot to me, looks like I will have to switch to mains transformer for testing rather than my 12 volt to HT buck PSU.

Adrian.

Learning as I go!
Youtube EF91 Valve

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Messages In This Thread

Trying to make a vision IF and Detector - fun! - by AdrianPH - 17-11-2020, 12:56 AM

RE: Trying to make a vision IF and Detector - fun! - by ppppenguin - 17-11-2020, 07:08 AM

RE: Trying to make a vision IF and Detector - fun! - by Nick - 17-11-2020, 07:20 AM

RE: Trying to make a vision IF and Detector - fun! - by peter scott - 17-11-2020, 08:07 AM

RE: Trying to make a vision IF and Detector - fun! - by ppppenguin - 17-11-2020, 07:52 AM

RE: Trying to make a vision IF and Detector - fun! - by ppppenguin - 17-11-2020, 08:55 AM

RE: Trying to make a vision IF and Detector - fun! - by Murphyv310 - 17-11-2020, 10:02 AM

RE: Trying to make a vision IF and Detector - fun! - by AdrianPH - 17-11-2020, 11:38 AM

RE: Trying to make a vision IF and Detector - fun! - by AdrianPH - 17-11-2020, 09:38 PM

RE: Trying to make a vision IF and Detector - fun! - by peter scott - 18-11-2020, 08:50 AM

RE: Trying to make a vision IF and Detector - fun! - by AdrianPH - 18-11-2020, 06:38 PM

RE: Trying to make a vision IF and Detector - fun! - by peter scott - 18-11-2020, 08:04 PM

RE: Trying to make a vision IF and Detector - fun! - by Murphyv310 - 19-11-2020, 09:52 AM

RE: Trying to make a vision IF and Detector - fun! - by AdrianPH - 21-11-2020, 01:37 PM

RE: Trying to make a vision IF and Detector - fun! - by Murphyv310 - 21-11-2020, 04:12 PM

RE: Trying to make a vision IF and Detector - fun! - by ppppenguin - 21-11-2020, 04:15 PM

RE: Trying to make a vision IF and Detector - fun! - by AdrianPH - 21-11-2020, 04:24 PM

RE: Trying to make a vision IF and Detector - fun! - by Murphyv310 - 21-11-2020, 04:39 PM

RE: Trying to make a vision IF and Detector - fun! - by AdrianPH - 21-11-2020, 05:13 PM

RE: Trying to make a vision IF and Detector - fun! - by ppppenguin - 21-11-2020, 06:25 PM

RE: Trying to make a vision IF and Detector - fun! - by AdrianPH - 21-11-2020, 08:18 PM

RE: Trying to make a vision IF and Detector - fun! - by AdrianPH - 24-11-2020, 03:16 PM

RE: Trying to make a vision IF and Detector - fun! - by Murphyv310 - 24-11-2020, 10:26 PM

RE: Trying to make a vision IF and Detector - fun! - by AdrianPH - 24-11-2020, 11:02 PM

RE: Trying to make a vision IF and Detector - fun! - by Murphyv310 - 25-11-2020, 09:37 AM

RE: Trying to make a vision IF and Detector - fun! - by AdrianPH - 25-11-2020, 10:18 AM

RE: Trying to make a vision IF and Detector - fun! - by AdrianPH - 25-11-2020, 09:05 PM

RE: Trying to make a vision IF and Detector - fun! - by AdrianPH - 27-11-2020, 09:39 AM

RE: Trying to make a vision IF and Detector - fun! - by ppppenguin - 27-11-2020, 10:19 AM

RE: Trying to make a vision IF and Detector - fun! - by Geordie McBoyne - 27-11-2020, 11:19 AM

RE: Trying to make a vision IF and Detector - fun! - by AdrianPH - 27-11-2020, 12:25 PM

RE: Trying to make a vision IF and Detector - fun! - by ppppenguin - 27-11-2020, 12:44 PM

RE: Trying to make a vision IF and Detector - fun! - by AdrianPH - 27-11-2020, 03:54 PM

RE: Trying to make a vision IF and Detector - fun! - by Geordie McBoyne - 28-11-2020, 11:05 AM

RE: Trying to make a vision IF and Detector - fun! - by AdrianPH - 28-11-2020, 11:53 AM

RE: Trying to make a vision IF and Detector - fun! - by Geordie McBoyne - 03-12-2020, 03:33 PM

RE: Trying to make a vision IF and Detector - fun! - by AdrianPH - 03-12-2020, 07:24 PM

RE: Trying to make a vision IF and Detector - fun! - by peter scott - 03-12-2020, 08:28 PM

RE: Trying to make a vision IF and Detector - fun! - by AdrianPH - 03-12-2020, 09:17 PM

RE: Trying to make a vision IF and Detector - fun! - by peter scott - 03-12-2020, 09:33 PM

RE: Trying to make a vision IF and Detector - fun! - by AdrianPH - 03-12-2020, 09:55 PM

RE: Trying to make a vision IF and Detector - fun! - by peter scott - 03-12-2020, 10:43 PM

RE: Trying to make a vision IF and Detector - fun! - by AdrianPH - 03-12-2020, 11:07 PM

RE: Trying to make a vision IF and Detector - fun! - by peter scott - 04-12-2020, 09:06 AM

The death trap! - by AdrianPH - 06-12-2020, 05:11 PM

RE: Trying to make a vision IF and Detector - fun! - by ppppenguin - 06-12-2020, 05:18 PM

RE: Trying to make a vision IF and Detector - fun! - by AdrianPH - 06-12-2020, 05:31 PM

RE: Trying to make a vision IF and Detector - fun! - by peter scott - 06-12-2020, 06:00 PM

RE: Trying to make a vision IF and Detector - fun! - by AdrianPH - 06-12-2020, 06:04 PM

RE: Trying to make a vision IF and Detector - fun! - by Murphyv310 - 06-12-2020, 09:52 PM

RE: Trying to make a vision IF and Detector - fun! - by AdrianPH - 06-12-2020, 10:20 PM

RE: Trying to make a vision IF and Detector - fun! - by AdrianPH - 07-12-2020, 01:17 AM

RE: Trying to make a vision IF and Detector - fun! - by peter scott - 07-12-2020, 10:39 AM

RE: Trying to make a vision IF and Detector - fun! - by AdrianPH - 07-12-2020, 10:54 AM

RE: Trying to make a vision IF and Detector - fun! - by AdrianPH - 07-12-2020, 04:13 PM

RE: Trying to make a vision IF and Detector - fun! - by peter scott - 07-12-2020, 04:19 PM

RE: Trying to make a vision IF and Detector - fun! - by AdrianPH - 07-12-2020, 04:49 PM

RE: Trying to make a vision IF and Detector - fun! - by peter scott - 07-12-2020, 05:27 PM

RE: Trying to make a vision IF and Detector - fun! - by AdrianPH - 07-12-2020, 10:24 PM

RE: Trying to make a vision IF and Detector - fun! - by Murphyv310 - 07-12-2020, 10:50 PM

RE: Trying to make a vision IF and Detector - fun! - by peter scott - 07-12-2020, 11:11 PM

RE: Trying to make a vision IF and Detector - fun! - by Murphyv310 - 07-12-2020, 11:16 PM

RE: Trying to make a vision IF and Detector - fun! - by AdrianPH - 07-12-2020, 11:41 PM

RE: Trying to make a vision IF and Detector - fun! - by AdrianPH - 20-12-2020, 05:33 PM

RE: Trying to make a vision IF and Detector - fun! - by AdrianPH - 28-01-2021, 10:04 PM

RE: Trying to make a vision IF and Detector - fun! - by AdrianPH - 28-01-2021, 10:10 PM

RE: Trying to make a vision IF and Detector - fun! - by peter scott - 29-01-2021, 08:34 AM

RE: Trying to make a vision IF and Detector - fun! - by Murphyv310 - 29-01-2021, 10:06 AM

RE: Trying to make a vision IF and Detector - fun! - by AdrianPH - 29-01-2021, 02:10 PM

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