Category: Uncategorised

Symetrix 528E – 4.7uF 35V BiPolar caps are getting hard to find. Will 50V caps fit?

Posted on 02/08/2023 in Uncategorised by aervblog

It is a bit harder to get them soldered but it can be done. 50V caps are much easier to find.

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Moseley PCL-606 STL Transmitter Fix, cheaper

Posted on 01/25/2023 in Uncategorised by aervblog

I got in a Moseley PCL 606 STL transmitter that was way low on power. Sometimes this is caused by the SL560C RF amplifier losing its ability to amplify. It is much like the degradation of the MAR-4 in a Moseley 6000 series transmitter. The problem here is that the TO99 can version of the […]

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Free shoe hanger makes good cable storage

Posted on 01/25/2023 in Uncategorised by aervblog

I found this shoe hanger on the side of the road, unopened and complete. Seems to be a good way to sort my plethora of cables. Found some I didn’t know I had. One of many messes cleaned up. Yay!

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DOD 835 Crossover Fail. Really cheap pots. They just fell apart

Posted on 10/23/2022 in Uncategorised by aervblog

A while ago I fixed a DOD electronic crossover by repairing a pot that fell apart. I got the thing back a few days ago and found that 3 more of the total of 6 100K pots had fallen apart the same way. The wiper just came off and fell out the bottom. I replaced […]

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Fujitsu Ten SP-1300A Cassette Repair

Posted on 06/01/2022 in Uncategorised by aervblog

This thing took me forever to repair. Firstly finding a manual for this thing was next to impossible. I finally spied a picture of one on an old forum and luckily got hold of the person that had posted it. He graciously sent me the manual that allowed me to repair it and the radio […]

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Inside a 9 Volt Duracell

Posted on 11/10/2021 in Uncategorised by aervblog

I have taken apart a few 9 volt batteries in my day but never a Duracell. They are made a little different it seems. They are divided into 6 flat packs of 1.5 Volts each for 9 Volts. All the other 9 Volt batteries I have seen were full of little tube style batteries that […]

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Corrosion in a Mosley 6020 STL Receiver. Not Good!

Posted on 10/13/2021 in Quick Fixes,TecTalk,Uncategorised by aervblog
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I got called in the other night to pick up and fix a Mosley 6020 STL receiver that had no LO1 level on the meter. The AFC Lock was on but there was no indication of receive. All voltages, +-15 and 5 were good. I brought it back to the shop and as soon as […]

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Using an Optimod 8100A in a studio

Posted on 05/05/2021 in TecTalk,Uncategorised by aervblog

I got an Orban Optimod 8100A in for repair. The power supply was the problem, the only tantalum cap on the board had opened up. That is strange since tants usually short, not this one. The symptom was that the + 15 volts would slowly decrease until it got to about 12 volts and everything […]

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What the heck happened to this?

Posted on 05/05/2021 in Uncategorised by aervblog
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We were going through the warehouse to see what kind of stuff we could get rid of (or I could fix in a video) when we came across this. That is the pinch roller on a Otari MX5050 4 Channel reel to reel. This thing has been sitting in the warehouse for a number of […]

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Parts, Is It What It Says It Is?

Posted on 07/08/2020 in TecTalk,Uncategorised by aervblog

In the past electronics repair was a pretty straight forward business. Find the bad part and replace it. You did not have to worry much about the parts you were getting. You could count on their quality even from places like Radio Shack. Now days that is just not true. If you go to EBay […]

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