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Search result [Alan 21]

Uploaded	Radio	Model/Category	Description
19 Jul 1998	AOR	AR-1500	Review: AOR AR-1500 handheld scanner
08 Feb 2006	Drake	R-4C	A New Noise Blanker for the Drake R-4C
22 Sep 2002	Drake	R-4C	Installation of MIX-4 in Drake R-4C
08 Jun 2012	Heathkit	HM-2102	Better balancing of the Heath HM-2102
23 Jan 2021	Icom	IC-736	Service Manual errors on IC-736
24 Oct 2010	Icom	IC-745	AM transmitter enable for the Icom IC-745
21 Apr 2000	Kenwood	TM-631	TM-631/731A Memory loss modification
16 Apr 2000	Kenwood	TM-721	TM-721A Microcomputer Lock-up
21 Apr 2000	Kenwood	TM-731	TM-631/731A Memory loss modification
19 Jul 1998	Kenwood	TR-2500	TR-2500/3500 dip switch setting
19 Jul 1998	Kenwood	TR-3500	TR-2500/3500 dip switch setting
24 Jul 2001	Kenwood	TS-440	Circuit Improvements for the TS-440S
20 Feb 1999	Kenwood	TS-450	Micro-input RFI modification TS450-TS690 Kenwood
30 Jun 2010	Kenwood	TS-530	Improved mic audio mods for TS-530/830
20 Feb 1999	Kenwood	TS-690	Micro-input RFI modification TS450-TS690 Kenwood
23 Jan 2007	Kenwood	TS-820	Kenwood TS-820S unstable frequency display on 10 meters
20 Feb 2000	Kenwood	TS-820	General Alignment Procedure for the TS-820(s)
19 Jul 1998	Kenwood	TS-820	General Notes on TS-820S
27 Apr 2007	Midland/Alan	121	Trimmer description and modification ALAN121
08 Sep 2010	Midland/Alan	MISC	Alan K205 or similar DC Power Supplies no output voltage
02 Jan 2013	Other	MISC	NE567 Tone Decoder as AM FM demodulator at 455 KHz
20 Apr 2006	Other	MISC	Boosting the operating range for GMT TX-630
06 Jan 2003	Other	MISC	9K6 mit Albrecht RV-400, Rexon RL-402 !!
27 Jul 2021	Other	SG-500	SGC SG-500 DC Current Alarm Test, Trouble-Shooting and Circuit Alignment
19 Jul 1998	Standard	C-450	Umbau der Handfunke C450 von Standard
19 Jul 1998	Uniden	HR2510	Tips and trick for the HR2510
19 Jul 1998	Uniden	HR2510	Information on the HR2510 10 meter radio
09 Apr 2006	Uniden	UH-011	Alignment information for Uniden UH-011
29 Aug 2011	Yaesu	FRG-100	FM Interception Trap for the FRG-100 receiver
19 Jul 1998	Yaesu	FT-747	Mod. for FT 747 (GX)
07 Mar 2013	Yaesu	FT-847	FT847 Low headphone output
25 Sep 2025	Antenna	HF	Improving the radiation angle of a multiband quadloop

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