KB 214 "Transportable" radio

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KB 214 "Transportable" radio

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pwdrive

Senior Engineer in Charge

Posts: 7,416
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Location: Cornwall

#43

28-11-2017, 12:27 PM (This post was last modified: 28-11-2017, 12:37 PM by pwdrive.)

The resistors in V4's filament circuit are for automatic bias, the bias resistor is connected to the electrical center of the filament supply in order to reduce hum. The bias resistor is 1k so -Vg will be quite high:

http://g3ynh.info/valves/old/Data-Books/...G-p046.pdf

Lawrence.

http://www.gridwatch.templar.co.uk/index.php

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Messages In This Thread

KB 214 "Transportable" radio - by Crackle - 12-11-2017, 08:43 PM

RE: KB 214 "Transportable" radio - by Crackle - 13-11-2017, 08:56 AM

RE: KB 214 "Transportable" radio - by boater sam - 13-11-2017, 09:14 AM

RE: KB 214 "Transportable" radio - by Murphyv310 - 13-11-2017, 10:05 AM

RE: KB 214 "Transportable" radio - by Crackle - 15-11-2017, 08:51 AM

RE: KB 214 "Transportable" radio - by Crackle - 15-11-2017, 04:50 PM

RE: KB 214 "Transportable" radio - by boater sam - 15-11-2017, 06:08 PM

RE: KB 214 "Transportable" radio - by Crackle - 15-11-2017, 06:51 PM

RE: KB 214 "Transportable" radio - by Ed_Dinning - 15-11-2017, 07:53 PM

RE: KB 214 "Transportable" radio - by Crackle - 15-11-2017, 09:16 PM

RE: KB 214 "Transportable" radio - by boater sam - 15-11-2017, 11:03 PM

RE: KB 214 "Transportable" radio - by Crackle - 16-11-2017, 08:28 AM

RE: KB 214 "Transportable" radio - by boater sam - 16-11-2017, 09:13 AM

RE: KB 214 "Transportable" radio - by Murphyv310 - 16-11-2017, 09:36 AM

RE: KB 214 "Transportable" radio - by boater sam - 16-11-2017, 10:05 AM

RE: KB 214 "Transportable" radio - by Crackle - 16-11-2017, 03:36 PM

RE: KB 214 "Transportable" radio - by Doodlebug - 16-11-2017, 04:24 PM

RE: KB 214 "Transportable" radio - by Crackle - 16-11-2017, 05:15 PM

RE: KB 214 "Transportable" radio - by Murphyv310 - 16-11-2017, 05:21 PM

RE: KB 214 "Transportable" radio - by Murphyv310 - 16-11-2017, 05:17 PM

RE: KB 214 "Transportable" radio - by Crackle - 16-11-2017, 05:26 PM

RE: KB 214 "Transportable" radio - by Murphyv310 - 16-11-2017, 05:30 PM

RE: KB 214 "Transportable" radio - by Crackle - 18-11-2017, 02:48 PM

RE: KB 214 "Transportable" radio - by Crackle - 19-11-2017, 08:21 PM

RE: KB 214 "Transportable" radio - by Refugee - 20-11-2017, 01:09 AM

RE: KB 214 "Transportable" radio - by Crackle - 22-11-2017, 07:58 PM

RE: KB 214 "Transportable" radio - by Crackle - 22-11-2017, 10:38 PM

RE: KB 214 "Transportable" radio - by peter scott - 23-11-2017, 07:58 AM

RE: KB 214 "Transportable" radio - by Crackle - 25-11-2017, 08:25 AM

RE: KB 214 "Transportable" radio - by Crackle - 25-11-2017, 08:48 AM

RE: KB 214 "Transportable" radio - by Crackle - 25-11-2017, 09:40 AM

RE: KB 214 "Transportable" radio - by Murphyv310 - 25-11-2017, 11:58 AM

RE: KB 214 "Transportable" radio - by Crackle - 25-11-2017, 03:19 PM

RE: KB 214 "Transportable" radio - by Murphyv310 - 25-11-2017, 04:11 PM

RE: KB 214 "Transportable" radio - by Crackle - 25-11-2017, 07:24 PM

RE: KB 214 "Transportable" radio - by Crackle - 27-11-2017, 08:15 PM

RE: KB 214 "Transportable" radio - by Crackle - 27-11-2017, 09:47 PM

RE: KB 214 "Transportable" radio - by boater sam - 27-11-2017, 11:15 PM

RE: KB 214 "Transportable" radio - by Crackle - 28-11-2017, 07:17 AM

RE: KB 214 "Transportable" radio - by boater sam - 28-11-2017, 07:29 AM

RE: KB 214 "Transportable" radio - by Crackle - 28-11-2017, 09:28 AM

RE: KB 214 "Transportable" radio - by Cardigan - 28-11-2017, 11:47 AM

RE: KB 214 "Transportable" radio - by pwdrive - 28-11-2017, 12:27 PM

RE: KB 214 "Transportable" radio - by Crackle - 28-11-2017, 12:33 PM

RE: KB 214 "Transportable" radio - by boater sam - 28-11-2017, 12:43 PM

RE: KB 214 "Transportable" radio - by Crackle - 28-11-2017, 07:55 PM

RE: KB 214 "Transportable" radio - by Cardigan - 28-11-2017, 09:45 PM

RE: KB 214 "Transportable" radio - by Crackle - 28-11-2017, 10:43 PM

RE: KB 214 "Transportable" radio - by Crackle - 29-11-2017, 11:18 AM

RE: KB 214 "Transportable" radio - by Murphyv310 - 29-11-2017, 11:38 AM

RE: KB 214 "Transportable" radio - by Crackle - 29-11-2017, 12:14 PM

RE: KB 214 "Transportable" radio - by Murphyv310 - 29-11-2017, 12:20 PM

RE: KB 214 "Transportable" radio - by Crackle - 29-11-2017, 01:05 PM

RE: KB 214 "Transportable" radio - by Refugee - 29-11-2017, 03:54 PM

RE: KB 214 "Transportable" radio - by Crackle - 29-11-2017, 04:02 PM

RE: KB 214 "Transportable" radio - by Crackle - 29-11-2017, 05:26 PM

RE: KB 214 "Transportable" radio - by Murphyv310 - 29-11-2017, 07:24 PM

RE: KB 214 "Transportable" radio - by Crackle - 29-11-2017, 07:40 PM

RE: KB 214 "Transportable" radio - by Murphyv310 - 29-11-2017, 08:04 PM

RE: KB 214 "Transportable" radio - by Crackle - 29-11-2017, 08:11 PM

RE: KB 214 "Transportable" radio - by Murphyv310 - 29-11-2017, 09:08 PM

RE: KB 214 "Transportable" radio - by boater sam - 29-11-2017, 11:59 PM

RE: KB 214 "Transportable" radio - by Crackle - 04-12-2017, 01:14 PM

RE: KB 214 "Transportable" radio - by ppppenguin - 04-12-2017, 02:37 PM

RE: KB 214 "Transportable" radio - by Crackle - 04-12-2017, 08:30 PM

RE: KB 214 "Transportable" radio - by Terry - 05-12-2017, 10:30 AM

RE: KB 214 "Transportable" radio - by Murphyv310 - 05-12-2017, 11:10 AM

RE: KB 214 "Transportable" radio - by boater sam - 05-12-2017, 12:07 PM

RE: KB 214 "Transportable" radio - by ppppenguin - 05-12-2017, 12:20 PM

RE: KB 214 "Transportable" radio - by peter scott - 05-12-2017, 01:45 PM

RE: KB 214 "Transportable" radio - by Crackle - 06-12-2017, 09:47 AM

RE: KB 214 "Transportable" radio - by Cardigan - 18-12-2017, 03:06 PM

RE: KB 214 "Transportable" radio - by unrealdave - 18-12-2017, 03:40 PM

RE: KB 214 "Transportable" radio - by Murphyv310 - 18-12-2017, 06:23 PM

RE: KB 214 "Transportable" radio - by Crackle - 18-12-2017, 06:40 PM

RE: KB 214 "Transportable" radio - by ppppenguin - 18-12-2017, 06:53 PM

RE: KB 214 "Transportable" radio - by Murphyv310 - 18-12-2017, 07:49 PM

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