Today's project and while not strictly TE it is related. Re-cap of this Radio Shack PRO-2037 Scanner. I've had this unit since about 1996 and it has never given me any trouble and it is powered on almost continuously. So I think it would be prudent to do a re-cap.
The unit below it is a battery backup I designed and built. In case of a power failure it automatically switches to battery power. When power is restored it switches back without any manual intervention.
![](https://imagizer.imageshack.com/v2/xq90/924/3fl9Po.jpg)
Here's the underside of the main board. Discovered that a few of the capacitors are obstructed by those shields so I'll have to forego changing them out. But I was mainly interested in the large value capacitors in the power supply and those were accessible.
![](https://imagizer.imageshack.com/v2/xq90/923/PKHSRT.jpg)
Main board completed and reinstalled. The scanner came back up with no issues. All I had to do was reprogram all the monitored frequencies.
![](https://imagizer.imageshack.com/v2/xq90/922/lqwLSK.jpg)
![](https://imagizer.imageshack.com/v2/xq90/923/CQeucM.jpg)
Other news.....the Fluke 8505A shipped this morning and is coming FedEx. The seller is on Long Island so there is the possibility that I could get it as soon as tomorrow. But Thursday is probably more likely.
And Phil.....your HP probes shipped too this morning. No arrival date yet.