[Boatanchors] Eldico S-109 Service Bulletins

[Byron Tatum]

Hello-
    I wanted to ask if anyone has any service bulletins, updates, etc. for the Eldico S-109 SSB system (R-104 receiver, T-102 transmitter "S-Line Clones"). On my R-104 receiver I noticed a couple of small tags, where work was done, placed on chassis with a TO# written on it. I assume there were some bulletins, etc. that were issued at some point.
    Thank you, Byron WA5THJ