[R-1051] R-1051 variant summary

[Dennis Gibbs]

Nick,

 

Many thanks for these photos and all the information!

 

Over a year ago, I purchased an R-1051G from Ebay.  When I received it, I
thought that perhaps some of the modules had been swapped out with those
from an earlier version.

 

For some reason, I thought the later variants, the 'G' and 'H' models, had
eliminated the two tubes in the front end.  According to your list, this
appears NOT to be the case, as my 'G' model does have the two tubes.  I did
check the six-pack module - After removing the lid, it contained the circuit
boards mounted, similar to the ones in the pictures on your website.  The
date codes on a couple of the ICs was the year 1979, which matches the
contract date on the tag on the front panel.

 

My R-1051G has a mended metal chain - obviously repaired, but it appears to
be a pretty good repair.  This is probably a desirable upgrade.  I wonder if
the only change in this area was the move to a plastic chain - if they
cheapened any of the pulleys/sprokets the chain rides on, perhaps the metal
replacement may not be such a good idea.

 

Anyway, mine works well, and thanks to your information, it appears I have a
mostly original R-1051G.

 

Dennis

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