32V-1 Transmitter
August 21, 2025 - Cleaning the relay and checking that it actuates when HV tis turned on. It looks really dirty still - been using lots of contact cleaner but still no RF output.
August 17, 2025 - After replacing the LV 4uf capacitors I was seeing grid and plate current and a small amount of output power. I decided to check the tubes in the exciter and found the 1st multiplier tube was bad and have ordered a new 6AG7. Also found some writing on the bottom of the plate covering the exciter which noted the tubes were changed in 1954 & 1966.
August 16, 2025 - Got the two 4uf capacitors replaced yesterday and seeing frid and plate current again.
August 14, 2025 - Been working on checking the electrolytic capacitors in the 32V-1 - found the HV 8uf is good bit the two LV 4uf capacitors (second picture below) need replacing. Also got a picture of the tag - the serial number is 435.
July6, 2025 - Re-checked the power out and it was 27W.
July 5, 2025 - Yesterday I hooked up a key to see if there was any output. Today I hooked up the Bird watt meter and was seeing around 30w - I will check again once I get the tubes I found faulty in the LV & HV power supplies replaced.
July 3, 2025 - Got the replacement lamps for the LV (green) and HV (red) indications. The lamps are 15 Watt - T4.5 Incandescent Light Bulb Clear - Candelabra Base - 130 Volt - PLT IN-0015T45CL and I ordered them from 1000bulbs.com .
June30, 2025 - Tested the LV, HV and modulator tubes yesterday - found a few that need replacing and ordered some and have bids on others.
June 28, 2025 - Almost two years later this project is finally on my bench. The LV and HV are working, but not sure I am getting the expected voltages. I will be testing tubes and capacitors in the power supply section next.
4 July 2023 - Finally got around to getting the 32V-1 out of the cabinet - first task was to replace the LV & HV lamps - next will be to check the two 4uF capacitors in the LV section.
I have the replacement dial from Howard Mills and I also have velum paper and the lamps for the dial segments.
18 October 2022 - Looking at a few items before firing this up - the 4uF capacitors in the LV section look leaky and they are deformed - ordered replacement capacitors for them and the two in the HV section. I may re-stuff them or may just bypass them under the chassis, installing the new capacitors there.
17 October 2022 - Picked up the Collins 32V-1 receiver on 10/15 - this radio is extremely heavy - looking forward to testing it and getting it operational. I already have the replacement dial rule.
22 September 2022 - Adding a 32V-1 transmitter to my Collins collection - just won the auction at $199.99 - a steal.
75A-3 Receiver
20 November 2021 - So far I replaced the limiter pot - it was frozen. Added another filter in the "B" position.
I ordered and received a complete tube set, capacitor replacement kit, and a SSB adapter. These will be installed at a later date.
Tested on multiple bands and works great - even SSB without the adapter works
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