Components and Circuits - UK Vintage Radio Repair and Restoration Discussion Forum

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Components and Circuits

Components and Circuits For discussions about component types, alternatives and availability, circuit configurations and modifications etc. Discussions here should be of a general nature and not about specific sets.

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Threads in Forum : Components and Circuits

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	Rating Thread / Thread Starter	Last Post	Replies	Views
Sticky Threads
	Sticky: Testing a transformer for shorted turns Merlin (24th Jan 2007)	30th Nov 2014 5:34 pm by Eddy_Stone	16	36,212
	Sticky: Fuses ( 1 2 3) Radio_Dave (8th Jan 2007)	1st Feb 2016 9:11 pm by trobbins	53	66,869
	Sticky: Testing an output transformer Radio_Dave (30th Jul 2007)	29th Apr 2013 5:01 pm by Herald1360	11	29,363
	Sticky: capacitors in series - pitfalls? ( 1 2 3) Andy Day (29th Aug 2007)	1st Jul 2015 4:32 pm by Herald1360	58	47,461
	Sticky: Testing Transistors. Station X (20th Jun 2009)	20th Jun 2009 2:57 pm by Station X	3	17,721
	Sticky: Testing transistors - analogue version DAVEHALL (15th May 2010)	7th Sep 2010 11:51 am by Lee.Wilkerson	3	14,547
	Sticky: Testing transistors. Mike Phelan (27th Oct 2010)	27th Oct 2010 10:23 am by Mike Phelan	0	24,203
	Sticky: Class X2 and Class Y Capacitors. Station X (16th Dec 2010)	16th Dec 2010 6:40 pm by Station X	0	18,330
	Sticky: Battery box and socket details. ( 1 2) neon indicator (28th Jun 2011)	25th Jun 2015 7:19 pm by TonyDuell	36	28,429
	Sticky: Grid coupling Capacitor aka "That" cap. ( 1 2) Courtney Louise (25th Aug 2011)	25th Mar 2014 2:32 pm by Station X	34	32,374
	Sticky: AF11x transistors, 'tin whisker' problems and solutions. Darren-UK (15th Nov 2011)	11th Feb 2018 3:35 pm by AC/HL	2	24,113
	Sticky: Replacement non-electrolytic capacitor values. Station X (2nd Oct 2012)	2nd Oct 2012 8:00 am by Station X	0	23,678
	Sticky: Battery case links and scans. ( 1 2 3 4) RadioHist (6th Jan 2014)	2nd Jan 2021 1:27 pm by ThePillenwerfer	61	30,454
Normal Threads
	Here's why can't you find a modern 250K or 500k potentiometer. ( 1 2) David G4EBT (11th Nov 2019)	21st Nov 2019 6:16 pm by Maarten	23	1,553
	Making 'vintage' resistors Mike Phelan (24th Feb 2005)	2nd Mar 2005 7:52 am by Mike Phelan	10	4,104
	Lubricating variable resistors ppppenguin (27th Mar 2004)	30th Mar 2004 3:30 pm by Tim	6	2,693
	Mechanical noise inside valves. Oskar	24th Apr 2004 9:31 pm by Sideband	7	2,296
	Repair of AF117 Transistors ipcress22	23rd Dec 2004 7:49 pm by jjl	6	6,532
	Buying Resistors PaulR (23rd Jun 2004)	12th Dec 2004 3:51 pm by Ed_Dinning	3	2,520
	Fuse ratings. Eric_Harvie (6th Dec 2004)	8th Dec 2004 9:54 pm by Eric_Harvie	8	2,286
	Capacitor testing. Darren-UK (5th Nov 2004)	8th Nov 2004 7:52 pm by Paul Stenning	11	4,451
	Volt drop across a valve rectifier staresy (24th Nov 2004)	24th Nov 2004 7:25 pm by McIntyre	3	2,030
	Non-polarised electrolytics. radiogammon (22nd Jun 2004)	24th Jun 2004 10:16 am by jjl	15	2,385
	Replacements for an EL33 McIntyre (18th Oct 2004)	19th Oct 2004 9:41 pm by Leon_Crampin	9	7,598
	Ageing of Carbon Resistors. Station X (16th Oct 2004)	18th Oct 2004 3:50 pm by XTC	11	4,062
	Log or Lin Potentiometers? Radio_Dave (1st Oct 2004)	1st Oct 2004 6:29 pm by Station X	6	2,375
	Reservoir/smoothing cap voltage question Radio_Dave (11th Sep 2004)	21st Sep 2004 10:37 am by Alan_Douglas	17	3,370
	Purpose of 'Tone Corrector' capacitor unitelex	14th Aug 2004 5:39 pm by unitelex	0	2,144
	Fuses avro (23rd Aug 2004)	24th Aug 2004 3:54 pm by Ed_Dinning	8	2,300
	Capacitor values rigsby27 (15th Aug 2004)	15th Aug 2004 2:39 pm by quantum	1	2,147
	Unused capacitor section Paul Stenning (10th Aug 2004)	11th Aug 2004 5:46 pm by Paul Stenning	4	2,157
	What is grid base (NOT grid bias). Station X (26th Jul 2004)	31st Jul 2004 5:48 am by Sideband	11	2,417
	IRF510 FET bias Wendymott (25th Jan 2021)	Yesterday 7:24 pm by Wendymott	14	452