[Boatanchors] BC 779A

[Joe Connor]

 John, these are great receivers and well worth the time it will take to restore it. You'll be surprised at how well it performs and how nice the audio is. 
1. Here's a good article by Al Parker that you might find useful
http://boatanchors.org/SP200.htm

2. Here's a good one by Henry Rodgers
https://www.radioblvd.com/hammarlund_super_pro.htm

3. Go to the BAMA site and download the military manual. It's very good
http://bama.edebris.com/manuals/military/bc779/

4. Some of the above-chassis cans have caps in them that will need to be replaced. The schematic will identify these cans. When you take the cover off a can, note the position of the insulating paper and make sure you reinstall it properly. Otherwise, you risk a nasty B+ short. 
5. I've used film caps from Mouser with good results. If you buy in bulk, the price goes down. 
6. Check all resistors. Plenty of them will have drifted high.
7. Before you remove the tuner/RF deck, take lots of pictures to aid in reassembly. I used model paint to color code the wires so that I put them where they belonged. When reinstalling the tuner/RF deck, be careful that you don't chip the tuning dials.
If I remember any more, I'll let you know.

                           Joe Connor


    On Tuesday, June 25, 2019, 08:22:07 PM GMT-4, John King via Boatanchors <boatanchors at mailman.qth.net> wrote:  
 
 I have a BC 779A receiver that looks like a truly great candidate for recapping and  restoration . It looks like it will clean up nicely. I also have the matching original power supply. The receiver, I have, was built by Howard company.
I purchased it in North Carolina, last summer, and allegedly was owned by an employee of Hammarlund  company at Mars Hill before their closing..
Under chassis shows no major repair or modifications and it appears to have less than half dozen caps replaced by modern capacitors. If anyone has a BC 778A that they have restored IN RECENT MEMORY, I would appreciate any tips things to look for. I don't have a manual or schematic for the BC 779A.
I have a SP 600 and plan to rack mount the BC 779 below the SP 600. I have quite a number of vintage receivers and have heard that a properly restored BC 779A can turn into a good receiver.
If restored BC 779 receivers is an interest of yours, I will appreciate tips and suggestions such as what are the square brown capacitors and what type modern capacitors will replace the.
I am looking forward to hearing from you folks.
73, John, K5PGW
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