Search results

Thank you guys, you all taught me something new.

I recently ordered around 25 PL259 ends that were listed as Teflon center from American Radio Supply. I've always thought the Teflon ends had a yellowish tan or brown center color while the plastic foam centers were all white. Well, these are listed as Teflon, but they're white centers. The...

Update 2: After talking on it a few hours I noticed the meter seemed a little floppy and would at times not show the correct signal on my locals as it was just a few moments earlier. I also noticed a slight change in the sound of the receive. For the meters, I figured I should spray them with...

I paid 50 bucks for this radio off of Craigslist. It wasn't listed as a CB radio, it was listed as only "Amateur radio for sale". Now I have me a practically brand new 2547 for just 50 bucks and about 25 cent on a VR.

Update - FIXED: Replaced variable resistor (VR14) with a new VR. Reinstalled passthrough reg, AF reg, etc...i had removed to check. Now: AM - carrier varies from 1w with RF power all the way down, to 3.80w with RF power all the way up. AM swing around 18w peak, at about 8w average. SSB - 18w...

Hmmm, interesting... I rechecked VR13 and VR14 again. Must have skipped VR14 the first time around, but this time in circuit showed no ohms on both outer leads. Although VR13 showed 1,093 ohm (1K) on the outer leads. Yanked out VR14 to check it out of circuit and still no ohms (no indication on...

Already replaced Q53, Q54, Q55 and Q56. I also checked D102, D103 and D109 out of circuit, they checkout fine on tester. And resistors in this area all checkout fine. Haven't checked the disc caps in this area though. I can short out the collector and base of Q55 and get a full 18w carrier on...

Got another weird one on the desk. Galaxy DX-2547 (no mods other than frequency expansion). Issue: No AM output Checked: AM receive - great SSB receive - great SSB output - great both modes Alignment - great, all freqs deadon. All switches/knobs work as new Meter and all lights work as new No...

Well, I went ahead and replaced that 330uf cap someone had placed in the C92 location, with the schematics value of 47uf. I noticed a slight change in the tone on receive, more natural sounding, and my locals said the tone of my transmit isn't as bassy as before, more natural sounding also...

Got an old classic Cobra 142 GTL on the desk. Issue: Transmit low in all modes Receive low in all modes Controls/switches scratchy Variable key not functioning correctly Decided to do a complete recap first. Upon removing the old caps, I noticed the C92 location had a 330uf 16v cap instead of...

My PEP meter shows 50w max swing. My Peak meter shows 35w max swing. Neither meter has ever been opened. I bought them both brand new myself. My oscope corresponds very close to my Peak meter, after converting from AC volts to watts. I've never seen any other old president on my desk doing 50w...

Got an old school two button President Washington (upd858 PLL), with an old school 1306 driver and an old school 1307 final on the desk. Issue: Blows fuses once turned on. Cause: All caps, every single cap was shot. Fix: Recapped entire radio, even power supply and button board. After fixing...

Came factory with a 10khz switch. I'll check PLL voltages and get back with y'all. Seriously though, this is strange to me, lol...

Got a Galaxy DX 2517 (mosfet version) on the desk. One of my previous works. Issue: Owner claims the frequency counter would switch through frequencies all by itself while just receiving. Did not affect the actual receive or transmit frequency, radio still received and transmitted on right...

Well, I noticed after talking on it for a bit that the carrier was fluctuating slightly. So I reset the keys to 8w to 40w as per someone else's recommendation. So far, holds at 40w the entire time of talking, sled amp gets slightly hot after 20 minutes of long winded talking, cools back down...

Well, I had to put the 10k ohm resistor back across the AMC limiter. Without the resistor, the radio makes a terrible buzz sound with your audio when keyed up at any carrier level which peaks out the output. With the resistor, the buzz sound goes away and audio sounds great. Any advice on...

Got a Connex CX-4600 Turbo on the desk today for just a checkup after 4 years of being stored. After warming up for 30 minutes: Hi deadkey = 75w, WOW!!! Lo deadkey = 25w, WOW!!! PEP swing at any deadkey level = 225w Peak swing """"" = 165w Average swing """""" = 92w Found a diode alone...

Just got finished working on an old Galaxy Saturn (ept3600 board) that had some receive issues. AM receive was ok, not the best in the world. AM meter had to be cranked almost wide open. SSB receive was weak, it was there but volume had to be turned up halfway just to hear people. SSB meter...

Just posting on my review of the new RCI-29 base radio. Two of my local friends joined together and bought 2 of the RCI-29 bases from Anderson Radio Supply located in SC. They had to place a pre-order about 3 weeks ago for the radios. Well, the radios finally arrived at their homes. One guy...

8.56v