View Full Version : Radio Circuits, Repair & Performance

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  1. FT101ZD
  2. HR-2510 bezel, frequency button mods?
  3. Yaesu FT 101EE no rx
  4. Handheld radio batteries exhausted due to non-usage, any chances to recover?
  5. Need help repairing TS-830 notch filter
  6. Yaesu FT-7100 not powering up
  7. Ts-430S PA repair... If I can do it, so can you!!!!!
  8. help needed sheldon hands electronic kit valve amp psu
  9. Yaesu FT-736R Will Not Transmit 220 Mhz
  10. Kenwood TW4000A Poor receive (at least on VHF)
  11. Yaesu CD-15A drop-in charger
  12. parts order from Icom Canada
  13. Yeasu FT-301 repair
  14. 60 Meter mod for the TS-570D?
  15. Icom 706 MK11G power relay
  16. I am looking amateur in Canada for parts order
  17. Motorola gr300 repeater
  18. 60 Meter Mod. for Yaesu FT-857D?
  19. Kenwood TS2000X Inrad filter
  21. VHF inline wattmeter--YS-500 question..
  22. Mouser Parts Shipping Experience
  23. TEN TEC OMNI-V Final AMP MRF458 -> 2SC2879 works OK.
  24. Need some help with a FT-736R
  25. TM-V7A
  26. need source for Bussmann BS1362 250V 1A HBC 6KA fuse
  27. Collins 30L-1 with two 572B tubes?
  28. ICOM 229H shorted
  29. Kenwood TM-742A with "Rushing" Sound on Transmit and Receive
  30. Yaesu 757 GX II CW "STUCK"
  31. ADI ARC 12 Fast Charger
  32. My first HF rig - Icom IC-735
  33. Yaesu FT-450D MARS Mod
  34. Leaky Ni-Cd battery corrosion prevention opinions wanted
  35. ICOM IC-2100h restore original transmit frequencies - replace d16
  36. icom 765 tuner
  37. HAGENUK AT1001 antenna tuner BDG/ATU controller
  38. ICOM IC-7000 noisy at 7.300 and down
  39. TS-940s Low Output
  40. Vacuum tubes - I need direction
  41. Beckman LM22A LCR Schematic
  42. Tube Tester Primer.....by popular request
  43. Kenwood TS 870 transmit above 7.100Mhz?
  44. Yaesu FT757GX2 low power out on 40m & 80m
  45. Cushman Radio System Analyzer CE-6000 schematic wanted.
  46. Adjusting SSB slopes without proper oscilloscope (70cm band)
  47. leader ldm-853a digital multimeter
  48. Kenwood - Glass surge fuse
  49. Motorola PA information needed
  50. IC-735 goes on TX by itself
  51. TS440S Dot Problem, hey I fixed it :D
  52. Unexplained Final failures in Yaesu and Icom and Kenwood HF transceivers
  53. ts 430s flashing mode lights
  54. Uniden President HR2600 no transmit and/or antenna/tuner issues?
  55. Motorola Micom Schematic
  56. Brimstone 144 modify tone burst circuit
  57. Problem with YAESU FT-757 GX2 keyer unit
  58. IF tap point
  59. Coaxial Trap Frequency with MFJ-259
  60. Limiting VERY STRONG Receiver Saturation
  61. Kenwood TS50 power switch
  62. HO-5404: Wild Gooses Chase!
  63. Kenwood TK-981 ver 2 troubleshooting
  64. Kenwood AT-200 tuuner question
  65. Kenwood SM-220 Low Pan Display Output
  66. adding SS-64 encoder to IC 255a
  67. World's simplest VHF oscillator!
  68. yaesu ft 900 color display
  69. IC2200 (rx low)
  70. Icom IC-27H randomly "opens"
  71. Yaesu FT-221 mods for the YC-221 Display
  72. Icom IC-765 Low Volume and Distorted SSB Receive
  73. Can i reverse mod on a galaxy Dx2517
  74. Alinco DR-235 off frequency
  75. Does the 2sc2509 have an internal diode between Collector and Emitter
  76. ICOM PCR1000 problem
  77. ID-O-Matic II
  78. what is this?
  79. FT-8000 Recieve Problem
  80. Twoer Schematic
  81. re kenwood ts 430 S lost AM
  82. Kenwood TM D-700 Transmit Problem
  83. Yaesu FT-712 overheading, drops receive until it cools down
  84. TS-140S IF Shift problem.
  85. Kenwood 120s sticking trans relay
  86. Why Tentec RX 340 is a " premium receiver " if it has a poor 55db dynamic range ?
  87. IC-202S schematic diagram with user manual
  88. Problems with YAESU FT-840 Dial
  89. Mo' power = Mo' better
  90. Older mobile radios with low rx current drain?
  91. Modern Alternator Noise/Whine on your FM Transceiver
  92. FT 897 Reveiving problems
  93. kenwood ts50
  94. Do I have a blown final on my FT-817ND?
  95. FT-767DX (FT-707) Service Manual
  96. CT Europe Dual Lever Key -- Need Help in Adjusting it!
  97. Odd 746Pro Problem regarding CW mode
  98. Kenwood TS590S, downconversion for lower bands?
  99. Dentron RT-3000 inductor shaft collar slipping
  100. New key-caps for Omni V?
  101. Another Yaesu FT 840 with problems
  102. PYRAMID PS-36K
  103. Replacing Old Components With New ???
  104. Icom IC-725 Synth Issue ?
  105. IC-27H Battery Replacement
  106. Checking out a new radio
  107. Kenwood TS-430S: Lithium backup battery lasts only a few days
  108. Kenwood TS-450 internal ATU flat flexible cable
  109. Can anyone repair a Kenwood TH-78A HT?
  110. Kenwood TS-870
  111. Penntek SA-500E Spectrum Analyzer Manual Needed
  112. Help diagnosing an HTX-100, will not transmit
  113. TS-440 RF board connections
  114. Kenwood TS-430S display shows "0" on power-up, static in speaker, no signals heard.
  115. FT-1000D meter sticking
  116. TS-480SAT Popping and Reciever Going out
  117. power cord connections for ts 700sp
  118. Repair Help
  119. TS-120V CW Tx problem after fitting filter
  120. pl tone board for kenwood tr9130
  121. Kenwood th-79a UHF transmit power very low
  122. Yaesu Ft-920 strange effect...
  123. ft-2800m No mic functions
  124. anyone with a spare power supply dead or alive for ICOM 701
  125. yaesu 2800m
  126. Realistic DX-390 repair help
  127. IC-746 Receive Drops on Transmit
  128. FT-857 S-meter not working in FM narrow mode only
  129. icom ic-728 hf rig.
  130. Icom 746 non pro power meter.
  131. Dentron DTR-1200L repair help!
  132. MFJ Antenna Tuner - needed maintenance
  133. IC-02E shematic for newer version
  134. help me fix ATS 818
  135. FT-8000 No RX audio issue
  136. flooded icom ic 25
  137. Need a 74S10 or 54S10 To Repair Equipment
  138. tm-731a pilot lamps
  139. DenTron Jr Monitor antenna coupler SWR modification
  140. Who has CFJ455K6 filter originally in IC-275, IC-475, IC-1275 or other icom rig?
  141. HTX-100 Won't Modulate CW
  142. ic-451 alignment
  143. Kenwood TS-450S Stiff main dial
  144. Cleaning solid brass CW keys...
  145. FT8500
  146. IC-751 txmit on both LSB, and USB simultainously...what is it?
  147. Alinco DR570T lithium battery replacement
  148. W52 wire on main unit in IC-275H
  149. Battery help
  150. Tech Help
  151. who has IC-275 where serial Nunber is more than 031..?
  152. Ft 767GX (No TX on HF)
  153. Icom 751a Loss of frequency Display
  154. help matching up radio manufacturer part# with oe parts manufacturer part#
  155. TYT UVF1 no VFO Mode after programming. Can't reset
  156. icim 751a band dropouts
  157. AEA MM-3 Keyer Problems
  158. All HF band amps , without tuni coils ?
  159. Kenwood TS-430 IF board replaced; no CW sidetone or VOX xmsn
  160. IC 706 MKIIG 17 & 15 meter issue
  161. Lionel J-36 Label Restoration
  162. Astron Power Supply
  163. VALVE AUDIO TRANSFORMERS, An alternative approach, by G0CWA
  164. ICOM IC746 now dead
  165. FT-8100r dead
  166. How to open EBP-28N battery pack /Alinko DJ-580/
  167. Icom 706mkll acc plug
  168. Icom IC-M411 With the dreaded reception problem
  169. FT107M Full service manual needed
  170. President Jackson Parts Wanted...
  171. kenwood tkr820 uhf repeater
  172. Alinco DX-SR8T
  173. One Tube Regenerative Radio Circuit
  174. Dentorn Clipperton L Amp Repair
  175. UBC175XL scannerr schematic
  176. Any good places to repair a VX5R??
  177. Atlas 110 transmitter rf fading after 2 min of CW
  178. HELP!! Yaesu 857D
  179. ICOM 551-D half dead
  180. Soldering station
  181. Lapel speaker/mic for the SM50
  182. IC-275H no RX/TX and nothing on display
  183. Pyramid power supply PS 14K now 24V!
  184. Yaesu FT-901DM HF Transceiver SSB Problem Please Help..
  185. HW-8, no power output
  186. Choosing A Digital Oscilloscope
  187. Leader LBO-518 Scope Schematic Needed
  188. TH-D72A repair
  189. Help with circuts
  190. New Video: Basics of Sweep Generators and RX alignment
  191. IC-738 Display Lights
  192. Kenwood TM-733A Lithium Battery Replacement, add battery holder, Ideas?
  193. ICOM PS-300 Noisy Fan Replacement.
  194. Standard GX2341 Marine Radio Mic Pinout???
  195. Yaesu FT-530 Service Manual/Technical Supplement Needed
  196. Short in antenna socket in FT 747GX
  197. ICOM IC 706 MK2 G Problem
  198. Yaesu Vx-7r charging problems
  199. Kenwood TS2000 No Transmit No Receive.
  200. FT-897D Main Dial Help Please
  201. I Dont Know What this is, HELP!
  202. Anyone have a spare Yaesu FT-897D Main Dial Rotary Encoder?
  203. IC-735 strange tone in SSB, CW receive audio
  204. rci ranger 2950 speaker
  205. Alinco ALM203E doesnt remember channels
  206. Nichols' Nuggets, Tidbits of Truth about Electronics Fundamentals, Part 1
  207. MICOM-XF Wanted Schematic FLN-6337A Interface S board
  208. Alinco DR 110 2 Meter 50 watt Radio
  209. Need Schematic Nova Tech Pal 3 band direction finder RDF -410
  210. Help with Alinco vhf/uhf mobile radio
  211. JRC JSB-196 HF SSB using SGC tuner
  212. Heathkit SB-104A RF output problem
  213. Convert 6LQ6 to EL-509 in Swan 500CX
  214. Kenwood TS-520SE Low Receiver Sensitivity Question
  215. AlincoDR605E Memory channels
  216. atenuador do icom ic-718
  217. Heath Frequency Counter (SM-118A)
  218. ic 229h no modulation, NOT Mike related ( tried 3 Mics! ) suspect radio it self.
  219. Icom IC-E208 service menu
  220. External Band Scope for IC-7200?
  221. I490A no FM Deviation/SSB output
  222. Replace IC-706 LCD display?
  223. Philips PM6666 Counter Timer
  224. Curve tracer , kit info ?
  225. Yaesu off frequency
  226. VX-150 Schematic
  227. how 7.000 to 7.200 tx mod. on kenwood ts 950 sd?
  228. Yeasu external tuner Communications Protocol
  229. Icom 736 Schematic
  230. RELM CTCSS encoder TE8NP pinouts
  231. Kenwood 950
  232. Ic-706mk11 rf out put problem
  233. Kenwood ts-950sdx sub rx
  234. Need help with SMD device
  235. GSV-3000 schematic
  236. Mirage B215G Schematic
  237. B&K 2050 signal generator help for s-meter adjustment can it be used?
  238. PowerPole Standards? MFJ-1124
  239. Display on Icom IC706 Mk2 G
  240. Yaesu ft-450 firmware
  241. IC-706 MkIIG Transmit range question.
  242. ATX supply question
  243. hsms-2920 diode
  244. Alinco dx77 output issue
  245. Connection counter frecuency on Atlas 210X help
  246. Motorola XPR 6300
  247. Ten Tec Triton 2 question
  248. Yaesu Ft 857D CW Issues
  249. Kenwood TS-430 and TS-440 all dots on display solution
  250. Low-Voltage LEDs
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