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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	Rating Thread / Thread Starter	Last Post	Replies	Views
Sticky Threads
	Sticky: Battery case links and scans. ( 1 2 3 4) RadioHist (6th Jan 2014)	22nd Sep 2021 2:40 pm by Dave Moll	66	55,435
	Sticky: AF11x transistors, 'tin whisker' problems and solutions. Darren-UK (15th Nov 2011)	11th Feb 2018 4:35 pm by AC/HL	2	34,816
	Sticky: Fuses ( 1 2 3) Radio_Dave (8th Jan 2007)	1st Feb 2016 10:11 pm by trobbins	53	85,140
	Sticky: Capacitors in series - pitfalls? ( 1 2 3) Andy Day (29th Aug 2007)	1st Jul 2015 5:32 pm by Herald1360	58	64,404
	Sticky: Battery box and socket details. ( 1 2) neon indicator (28th Jun 2011)	25th Jun 2015 8:19 pm by TonyDuell	36	42,725
	Sticky: Testing a transformer for shorted turns Merlin (24th Jan 2007)	30th Nov 2014 6:34 pm by Eddy_Stone	16	44,715
	Sticky: Grid coupling Capacitor aka "That" cap. ( 1 2) Courtney Louise (25th Aug 2011)	25th Mar 2014 3:32 pm by Station X	34	44,219
	Sticky: Testing an output transformer Radio_Dave (30th Jul 2007)	29th Apr 2013 6:01 pm by Herald1360	11	39,070
	Sticky: Replacement non-electrolytic capacitor values. Station X (2nd Oct 2012)	2nd Oct 2012 9:00 am by Station X	0	31,748
	Sticky: Class X2 and Class Y Capacitors. Station X (16th Dec 2010)	16th Dec 2010 7:40 pm by Station X	0	25,119
	Sticky: Testing transistors. Mike Phelan (27th Oct 2010)	27th Oct 2010 11:23 am by Mike Phelan	0	33,368
	Sticky: Testing transistors - analogue version DAVEHALL (16th May 2010)	7th Sep 2010 12:51 pm by Lee.Wilkerson	3	18,924
	Sticky: Testing Transistors. Station X (20th Jun 2009)	20th Jun 2009 3:57 pm by Station X	3	22,547
Normal Threads
	Mystery object - what is this? Studio263 (Today)	Today 8:18 pm by stevehertz	2	70
	VHF inductor test jig Wendymott (11th Apr 2024)	Today 5:59 pm by Cruisin Marine	6	310
	"Modern Radio" monthly - 1920's valves John_BS (Yesterday)	Today 2:01 pm by m0cemdave	1	120
	Dynamic microphone to phantom powered electret input ScottBouch (9th Apr 2024)	Today 1:51 pm by m0cemdave	19	707
	Fake semicoductors and keeping abreast with progress! John_BS (14th Apr 2024)	Yesterday 10:24 pm by kalee20	6	559
	10k pot in wobulator? 60 oldjohn (14th Apr 2024)	Yesterday 1:07 pm by Chrispy57	3	219
	Cleaning metalized valves. line sync (11th Apr 2024)	14th Apr 2024 5:26 pm by Bazz4CQJ	19	637
	Old Motorola RF transistor data oldjanus (30th Mar 2024)	14th Apr 2024 12:00 pm by oldjanus	4	344
	Rosens low distortion oscillator. mpegjohn (10th Apr 2024)	14th Apr 2024 10:19 am by Radio Wrangler	12	440
	Vintage solder reel question Techman (10th Apr 2024)	12th Apr 2024 9:53 pm by turretslug	10	768
	L.E.D. voltage vinrads (19th Mar 2024)	10th Apr 2024 5:53 pm by ex seismic	9	795
	Talking AF117 etc ( 1 2) vinrads (29th Mar 2024)	8th Apr 2024 11:27 pm by VT FUSE	30	1,356
	TV18-2KT diode, test/replace Xyience (2nd Apr 2024)	8th Apr 2024 7:10 pm by factory	10	610
	WW1 B type valve ? Tinker1966 (7th Apr 2024)	8th Apr 2024 11:17 am by GMB	4	354
	Ferrite pot core calculations ( 1 2) kellys_eye (3rd Apr 2024)	7th Apr 2024 3:09 pm by kellys_eye	22	684
	Replacement of Panasonic microphone IanNVJ35 (6th Apr 2024)	6th Apr 2024 9:53 pm by IanNVJ35	0	135
	Which transistor is this? 60 oldjohn (5th Apr 2024)	6th Apr 2024 1:49 pm by Chrispy57	14	573
	Baby Huey EBL21 Richardgr (7th Mar 2024)	6th Apr 2024 9:36 am by Richardgr	8	614
	When was Radiospares' Deluxe Output Transformer first added to RS catalogue? Valvepower (23rd Mar 2024)	3rd Apr 2024 6:47 pm by toprepairman	18	996
	Mullard Import Joe_Lorenz (29th Mar 2024)	30th Mar 2024 1:09 pm by paulsherwin	8	394