This is a TenTec Antenna Tuner, model 229A, I picked up in an estate sale. It matched my Omni C, and only had minor issues. There was some arcing in the roller inductor, but that was solved with cleaning and dry lube. A new lamp in the meter, cleaning the band switch, and she was good as new. Here's a few pics...
WB4IUY's Random Blog
I've been in Amateur Radio since 1974, and still find new and interesting things to do. I like to build, restore, and operate on the air. This blog has been running for many years, so be sure to check out "Jump to Posts on Specific Topics" in the RH column to drill down and find lots of stuff. Visit www.WB4IUY.net for the lowdown at WB4IUY. Email me at wb4iuy@gmail.com if you have any questions.
Tuesday, November 12, 2024
Amp Supply LK-450
This is a Amp Supply LK-450 that needed some help. It runs a single 3-500 tube, and is very similar to the Ameritron AL-80. This unit needed recapping, new bleeders, new rectifiers, and a few other bits. I upgraded the caps from 210uF to 330uF, and they were still about half the size of the originals. Here's a few pics...
TenTec Century 21 Digital Resto
This is a TenTec Century 21 Digital model 574 I restored. It worked, but was pretty rough. I replaced the 10m crystal, repaired the narrow CW rx mode (bad 3900 op amp), repaired the CW keyer, installed the marker board from another donor rig, replaced the front panel push buttons, rebuilt the VFO (it was stuck), modified the CW sidetone circuit to raise the pitch to about 750hz, and recovered the cases. Here's a few vids and pics...
Monday, November 11, 2024
Regency MT-5500 Marine Radio
This is a Regency MT-5500 marine radio with built-in weather radio. I picked up a few of these and am slowly working my way through the pile. I had to pull the head on this one and replace the volume control, and wire a mic to it. Otherwise, it was in pretty good shape. 25w output, good receiver sensitivity, a solid rig.