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Hi, Go to the CBtricks site and look at the schematic. Trace the path from VR10 to the collector of the driver. Look along the path for a electrolytic cap to ground. If you have an ESR meter test it or just pull it. Once pulled try again.....

This isn't an "APP" but more of an old fashion piece of test equipment. I took an old 23 channel radio and brought out a transistor socket to the outer cover from the final spot on the board to test finals without soldering in. Cheap! Pulled the radio final first of course. Reason: Cheap...

Was this a "new to you" radio when you put it on the shelf? Lots of people turn down the AM power to run an amplifier. VR10 adjusts the AM power out/dead key.

HI 7861, There was another symptom you don't seem to be taking into account: The dimming not so bright hi low display. I would start with a check of his power supply. Does it supply a constant 13.8 keyed or unkeyed? He said power out didn't change no matter how he "Tuned it". As I recall...

Hi TM86, You had me checking if I had the right CB photofacts number. I guess you just mis-typed 274. Since I started playing with CB radios I have used the Sam's manuals and like their format. I believe I downloaded your information and have it in my files. Thanks again for the info, it may...

HI, I am looking 264 SBE sidebander V. Thanks for your time. Monkradio

HI, I know this is an old post but you said you didn't have the cash when you posted so it has be over a year now. Maybe you have some cash now. I do have a Palomar 310m in working condition, between 3 and 400 watts out, 100% tubes. I also have a D&A MDA200 and a D&A Falcon 400. If you...

I am looking for #274 SBE Sidebander V Thanks Monk

They can be tuned a peaked but the labor involved is not worth it. If you wanted to do it to your own radio for your own satisfaction and have some older junk CB radios around for parts swapping it can be done. Basically you remove the fixed coils in the transmit chain and replace them with the...

Handy Andy, I'll kick in a beer for you too. I have a newer front mic 29 with a different set of symptoms but the cure was the same putting in the 47uf cap in the unfilled cap spot. In this 29 there was no black wire. The audio was fine as long as the volume was low like listening in a home but...

Mixed up No, I don't have them mixed up! Monk

Converting from 2 transistors to 1 Go to CB tricks and look up the Texas Star Modulator, follow the schematic.

Moding the HTX-10 with a crystal change Hi, I put a htx-10 on the 11 meter band by changing the reference crystal like the mod for the HR2600. The frequency display doesn't change but you just deduct 2 mhz. I don't have the crystal frequency. I used my signal generator to supply the...

Skipper no power out Can you hear the relay in the amp click when you key up the radio? Have you tried swapping the tubes around? You say one tube is dimer than the others. Pull the dim tube and put one of the bright tubes in that socket. Whenever working on a tube amp make sure it is...

Relays for D&A amps with 110 volt DC relays Check out Harbach electronics, order the relay for the SB220. These are high quality and the price includes shipping. The NTE replacements are junk. Monk

Fiberglass Rod Call around to your local Farm and Ranch fencing supplier. They will have or know where to get solid fiberglass rods. Monk

24LQ6 Phantom There is a much easier way to run the 24 volt tubes. Look at the filament supplies on the transformers... No choke needed. 12 volt. 12 plus 12 equals 24 I've been doing these conversions on D&A's for years. Monk

HI Fusekilla, Do you still have those manuals for the Kenwood ts140 transceivers? If so I would like to buy them. Thanks Monk

Mobile is the key word, ran off of Leece Nevile Transformers ran on other than 60cyl can be much smaller for the same power out. If you look at the pictures the builder removed the 120/240 power supply and installed one ran off of 3 phase from the alternator...