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)	2nd Jan 2021 1:27 pm by ThePillenwerfer	61	30,141
	Sticky: AF11x transistors, 'tin whisker' problems and solutions. Darren-UK (15th Nov 2011)	11th Feb 2018 3:35 pm by AC/HL	2	23,984
	Sticky: Fuses ( 1 2 3) Radio_Dave (8th Jan 2007)	1st Feb 2016 9:11 pm by trobbins	53	66,675
	Sticky: capacitors in series - pitfalls? ( 1 2 3) Andy Day (29th Aug 2007)	1st Jul 2015 4:32 pm by Herald1360	58	47,253
	Sticky: Battery box and socket details. ( 1 2) neon indicator (28th Jun 2011)	25th Jun 2015 7:19 pm by TonyDuell	36	28,255
	Sticky: Testing a transformer for shorted turns Merlin (24th Jan 2007)	30th Nov 2014 5:34 pm by Eddy_Stone	16	36,104
	Sticky: Grid coupling Capacitor aka "That" cap. ( 1 2) Courtney Louise (25th Aug 2011)	25th Mar 2014 2:32 pm by Station X	34	32,237
	Sticky: Testing an output transformer Radio_Dave (30th Jul 2007)	29th Apr 2013 5:01 pm by Herald1360	11	29,242
	Sticky: Replacement non-electrolytic capacitor values. Station X (2nd Oct 2012)	2nd Oct 2012 8:00 am by Station X	0	23,576
	Sticky: Class X2 and Class Y Capacitors. Station X (16th Dec 2010)	16th Dec 2010 6:40 pm by Station X	0	18,263
	Sticky: Testing transistors. Mike Phelan (27th Oct 2010)	27th Oct 2010 10:23 am by Mike Phelan	0	24,087
	Sticky: Testing transistors - analogue version DAVEHALL (15th May 2010)	7th Sep 2010 11:51 am by Lee.Wilkerson	3	14,526
	Sticky: Testing Transistors. Station X (20th Jun 2009)	20th Jun 2009 2:57 pm by Station X	3	17,682
Normal Threads
	Inrush Protection PTC? KW2000A (Today)	Today 8:10 pm by buggies	1	59
	Exotic speaker cable - problems. samjmann (Yesterday)	Today 7:32 pm by knobtwiddler	10	389
	QQV03-20A double beam tetrodes. ( 1 2) Diabolical Artificer (8th Jan 2021)	Today 6:11 pm by AdrianH	24	739
	EBL31 Cathode to Heater Short John G8MWF (Yesterday)	Today 5:35 pm by turretslug	6	141
	Can anyone tell me what this part is please? barrywebb (13th Jan 2021)	Today 3:42 pm by stevehertz	8	403
	What is a P.A.C. Unit ? DMcMahon (Yesterday)	Today 1:38 pm by jez_145	16	469
	When is a capacitor not across the mains. ChristianFletcher (13th Jan 2021)	Today 9:08 am by Ed_Dinning	19	491
	Lm317 and similar regs vinrads (Yesterday)	Today 9:05 am by vinrads	9	289
	What are these? stuart_morgan_64 (Today)	Today 8:58 am by stuart_morgan_64	6	125
	SPL802 semiconductor valve replacement. ( 1 2) David Simpson (31st Dec 2020)	Yesterday 2:33 pm by David Simpson	25	852
	Modelling TV/FM Yagi Aerials SteveCG (29th Dec 2020)	Yesterday 2:05 pm by Julesomega	13	544
	Component wax Ian - G4JQT (13th Jan 2021)	13th Jan 2021 10:16 pm by suebutcher	7	322
	Checking 10MHz OCXO frequency? ( 1 2) mole42uk (12th Jan 2021)	13th Jan 2021 10:04 pm by mole42uk	21	458
	Car battery charger project. ( 1 2) MALC SCOTT (9th Jan 2021)	13th Jan 2021 9:56 am by MALC SCOTT	33	1,032
	What would you call this type of fixing vinrads (12th Jan 2021)	13th Jan 2021 9:21 am by vinrads	5	297
	Cossor SD6 valve, a strange diode high_vacuum_house (12th Jan 2021)	13th Jan 2021 8:49 am by Cobaltblue	3	179
	Mistakes in the book "Build your own Audio Valve Amplifiers" by Rainer Zur Linde tri-comp (8th Mar 2020)	13th Jan 2021 1:14 am by Maarten	14	305
	Fastener Terminology Guide Retaining Rings & Washers pmmunro (12th Jan 2021)	12th Jan 2021 8:21 pm by mole42uk	4	203
	RS 'Hygrade' Universal Output Xfmr.: data? Skywave (11th Jan 2021)	12th Jan 2021 12:03 am by Skywave	4	258
	Help with a transistor ID please allyson114 (4th Jan 2021)	10th Jan 2021 2:33 pm by Mooly	11	496