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Good day everyone, On the bench today is a 94HP and it is very flaky. The operator said that about 2 weeks ago the radio would not turn normally. It will sometimes turn on after a few minutes and sometime not at all. When I tried it nothing happend right away except for about a 20ma current...

Hey Gang, My 1980's HP "battleship" spectrum analyzer bit the dust so I am looking for ideas for a replacement. At this point I am not looking to spend $1000+ for one and am leary of some used ones I see. The truth is, all I have been using it for over the past few years has been the 54MHz...

Hi Everyone, So, on the bench is a Tram D62 which is the same radio as the Cobra 132 and is shown in Sams 179. This radio performs well overall but is sparatic in transmitting on 36, 37, 38, 39 and will will almost never transmit on 40. This is true on AM, LSB and USB. When you key the mic in...

Hi Everyone, I have a Robyn SB520 that I am repairing and the 7.7975 crystal is bad. How do I know you asked? Well, I could not get it to give a stable frequency during alignment so I swapped it with one from a known working radio and it aligned perfectly. I then took the "bad" one and put it...

Hi Everyone, So, I have an HR 2510 on the bench and have done a cap replacement and the removal of the crazy glue of death (which was a lot). This radio is missing Q121 and I have no idea why. It does receive and transmit. Has anyone seen a mod where you remove Q121 or have any thoughts as to...

Hi Gang, So, I picked up an HR 2510 and I have found some interesting thing sthat I have not seen in one before. This will be my 5th 2510 that I have worked on by the way. The 1st discovery was the the confuguration for the switch that was installed on the back. It has a resistor and diode...

Hey Everyone, So, I am working through a President HR2510 and after removing all of the glue I was wondering what you use in place the Sony Bond (brown glue) if anything? I was thinking more in the lines of what to use on the inductors. Once you remove the glue the ferrite ring is now loose as...

Hi Everyone, I have a DX500 from a local op and asked me to replace the pills with new ones he had supplied. The amp is in great shape so I thought, sure. I was wiling to do that with the understanding that I am not guaranteeing it will work. When I opened it there was a burned resistor in a...

Hi Everyone, I picked up a 575 last night that has a physically broken switch. It is a 12 pin switch that is soldered onto the circuit board. I searched for a while and cannot seem to come up with a source. does anyone know where I could obtain one? Thanks!!

Hi Everyone, I had a local operator drop off a Ten-Tec 526 with a strange issue. During transmit or receive the radio produces an ~300Hz hum that can be heard through the speaker on rcv and by others on xmt. I thought it might be in the audio circuit but when I pump in a signal in USB for...

Hi Gang, I have a PC76 on the bench needing an ailgnment. It has the PA-340AC board in it. I know it is similar to the Cobra 29 but this one has a VR7 in it near the antenna jack and I canot seem to find an alignment guide that details this board out. Anyone have the details? Thanks as always!!

Hi Everyone, One the bench is a Stryker 955 version 1 and the owner complaint is that it will no longer power on. He stated that it began having issues where it would take a number of times of turning the power knob on before it would come on. I did experience this myself where it did not...

Has anyone purchased transistors from ICA Manufacturing? I used my last 1969 and 2166 last night and was looking to find a few to keep "in stock". I saw that ICA has both in the HG line instead of the Mitsubishi line. I want to trust it but you never know..... Thanks!!!

I have an RCI 2985DX on the bench (today) with low output power (2w AM and 8w SSB). It does give me output on SSB but no modulation on AM. I removed the 11 meter jumper to reset it back to its defualt frequency range and began an alignment. The VCO/PLL aligned great. I moved onto the TX...

Hi Everyone, I have an interesting condition I can seem to figure out. The user has a few radios that they use. When used they are connected to a Texas Star amp. with all but 1 radio the SWR's are 1.3 and they all have good audio. When they conect 1 radio (a Teaberry Stalker) the SWR's are...

Hi Everyone, On the bench is a President Lincoln 2+ with an interesting transmit issue. When you key the mic TX shows on the display but the radio stays in receive. This is on all of the modes. Any thoughts? Thanks as always!!

Hi Everyone, I have a made in the Phillipians Cobra 29 (June 1993) with the NPC D2816C PLL and need to do an alignement. I can't seem to find the right alignment doc for it. Would anyone have a copy? Thanks as always!!

Hi Everyone, Now that I was able to get the Lincoln 2+ working the next thing was a linear test (Texas Star DX 350HD). The radio sounds great on AM without the linear on. When the linear is on the carrier is good but the audio is about 20%. When in USB or LSB the audio and signal are great...

Hi Everyone, I was asked to see if I could get this Lincoln 2+ transmitting again as I have sucess with these and some of the RCI boards with a similar regulator setup. The operator said that he did the 11 meter mod (but used a 10K resistor istead of a 1K) and then cranked up the SSB power, AM...