Cost To Date

Tubes, TubeDepot, $23.75
Tube, VacuumTubes, $10.00
Filter Caps, Digikey, $2.05
Filter Caps, Digikey, $3.15
Paper Caps, Digikey, $24.28
Knobs, Bias Pot, IF Xformer Play Things of the Past, $31.35
Speaker Connector, NAPA, $2.96
Transistor, Quest Components, $32.50
Weld Nuts, McMaster-Carr, $2.00
TOTAL $132.04

Saturday, December 21, 2013

Radio Restore Complete!

Installed the last tube, did a complete alignment using the antenna that will be used, and built the speaker cable.

Friday, December 20, 2013

Received Antenna Today

This is the antenna that Brian had drop shiped to me from Studebaker International:

Wednesday, December 18, 2013

Tubes Arrived

Four of the five tubes came in.

New Tube Location Guide

Added a new tube location guide using MS PowerPoint, printing onto photo paper and laminating. It's not very much ike the original but it will do the job.

Tuesday, December 17, 2013

Another Tube Resource

Ordered a 12AD6 from here.

Alignment Info from Antique Radios Forum

Here are the alignment instructions for the similar Motorola CTA8X, which is the one that the SM9T Motorola page refers to for everything except the schematic and the parts list, which you have. A1, A2, A3, A4 are of course the IF adjustments. A5 is the Osc trimmer, A6 is the RF trimmer, and A7 is the antenna trimmer on the back of the radio. This information is from Sams AR-9 and component labels may be different from Motorola labels. My Motorola manual is missing the pages for CTA8X.

Motorola CTA8X alignment.jpg