Which brand MOSFETS for RCI2970N2 ?
I need to repair a 2970N2 with blown MosFets. Looking to order some from Mouser or DigiKey. Can someone recommend which are the best MFG and/or suffix? Vishay? Infineon? 520, 520N? Anyone try 530 or...
View Articlegalaxy 959 problems
this 959 has good tx.but no receive,shows receive on the meter of the radio.but no sound, ive changed the audio chip and the caps around it still no sound
View ArticlePalomar 300A Black Face
I picked up this amp today, it cleans up real nice. The ceramic caps on the final plate look kinda toasted so I'd like to replace them. Anyone know the values? They say 3300M, theres 4 and the...
View ArticleB&K 2040
In my quest to learn radio repair and my frugal habits of refusing to pay a fortune for a signal tracer on the bay that may not work. I was looking thru the manual for my 2040 signal generator and...
View ArticleWhat power supply
Hi All I want to use my 500 watt polomar amp on my base station (Cobra 2000). Basic math shows a 50amp power converter is what I need. Anyone have suggestions as to what power supply? Would a battery...
View ArticleSchematic/Service Manual for Chinese Cobra 148 GTL?
I recently won a new-in-the-box Cobra 148 GTL in a raffle. Of course, it's one of the Chinese ones (exactly the same as the one Robb reviewed last year). I need another radio like I need a hole in the...
View ArticleRecapping older radios
Hello all, I'm wonder if I should have my two thirty plus year old radios recapped. They both seem to be working okay. They're never been modded or "tuned up" in any way. I think this has a lot to do...
View ArticleCB Repair Shops
Hey All! Any good CB repairs shops in TN? I'm getting ready to start driving for an OTR company in TN and I live in NC so I thought I would ask if anyone knows of any good repair shop around TN or...
View ArticlePOWERING A TUBE BASE AMPLIFIER
Is it important to plug an amplifier directly into a wall outlet as opposed to a power strip? If so why? Thanks 73
View ArticleD104 MODIFICATION
I had a shot QSO with 113 in Mexican (27.565 USB). I listened as he made contact after contact. His audio was so impressive I had to qsk and ask him his working conditions. A 148 and a d104 that was...
View ArticleIdeas on putting together a CB work bench.
Hello everyone, I am working on putting together a CB work bench to play around with and wanted to pick your brains to see if these items are a good start. I just picked up this scope off eBay hoping...
View ArticleWhats up W/ New Cobra 29
I had someone bring me a cobra 29 (dated Oct 2009) because he wanted an echo board put in it. No problems with the radio as it works like it should. I noticed two things I'm hoping you all might be...
View ArticleWHo Makes TWISTER Amps now?
Just wondering. I heard his son carried on the tradition? Theres seems to be several of these amps in my area. a 1x4 base, a 2x8 base and a 16 pill all plug in the wall amps. Personally I have a 2x8 in...
View ArticleRecomendations for a spectrum analyser
Could some one recommend something that will do the job without overkill, yes I know the importance of calibrated equipment. Thanks
View ArticleTesting signal generator ouput
I have a leader LAG audio generator, how do I go about checking it's output? When I inject the tone into the mic jack, it is there you can hear it and see it on the scope, and when I change the dial...
View ArticleFine Tune CB shop
Anyone have any reviews on Fine Tune CB shop? I'm considering a radio purchase and wondering if he is as good as he claims in his Youtube vids, or is it all smoke and mirrors?
View ArticleVery dim starlite on my new galaxy 98
Hi everybody, I have a new Galaxy 98 and my Starlight is very dim even when my dimmer is all the way up. My question is does anybody know if there is a way to turn it up or perhaps replace a component...
View ArticleANYONE HEARD THE JAMMER ON 38LSB
His name is Phil ***** located at **** Perth ST North Madison Ohio He jams 38lsb 24/7 Lets make this a$$hole famous!!!!
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Help Restoring A 142 GTL with A 2SC2078 Driver Mod
Hello everyone, I have a 142GTL with a 2SC2078 rf final installed as a driver! I have a 2SC2166 And would prefer to return the radio back to original spec. Here is the 100 Ohm Bias Resistor, And the...
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