01-08-2019, 12:20 AM
@r462ron - 
yeah not so easy for us poor humans. I imagine they did that due to space constraints. It also gets more error-prone to count zeros rather than significant digits + multiplier. Think trying to separate 0.00047uF from 0.0047uF - as opposed to 471 from 472. Of course they could label in units (pF/nF/uF etc.) which would make the zero problem better.
@Jeremy S - Yes! BTW - thank you for your great 38-116 restoration page. You really put in some work on that one and the result was amazing. I do have some replacement tube bases. On the RF subchassis I was able to bend them back into more or less original shape. I am still thinking about what to do with the bent bases on the main chassis - mostly the best way to attach them. I see you used 6-32 flathead machine screws which seems like a good choice. The only limitation I can see is for grid cap wires that pass through the rivets - would have to drill a new hole for those I guess.
@rfeenstra - That's the idea! I have been trying to document everything to help with your 37-116 restoration since you said you were thinking about starting it.
I've previously restored a 37-116 and the two sets are quite similar although I would say the RF subchassis of the 37-116 is a bit more difficult (sorry!) as it has more caps buried in the middle of the bandswitch. The best advice is to just go really slowly and carefully and take a break if you're feeling impatient. The 37-690 uses the same RF subchassis as the 37-116 - so you can see pictures of that in my 37-690 restoration thread. There are a number of other good threads on the 37-116 - so be sure to read through as many as you can find. Your 37-116 looks to be in very nice shape. 
yeah not so easy for us poor humans. I imagine they did that due to space constraints. It also gets more error-prone to count zeros rather than significant digits + multiplier. Think trying to separate 0.00047uF from 0.0047uF - as opposed to 471 from 472. Of course they could label in units (pF/nF/uF etc.) which would make the zero problem better. @Jeremy S - Yes! BTW - thank you for your great 38-116 restoration page. You really put in some work on that one and the result was amazing. I do have some replacement tube bases. On the RF subchassis I was able to bend them back into more or less original shape. I am still thinking about what to do with the bent bases on the main chassis - mostly the best way to attach them. I see you used 6-32 flathead machine screws which seems like a good choice. The only limitation I can see is for grid cap wires that pass through the rivets - would have to drill a new hole for those I guess.
@rfeenstra - That's the idea! I have been trying to document everything to help with your 37-116 restoration since you said you were thinking about starting it.
I've previously restored a 37-116 and the two sets are quite similar although I would say the RF subchassis of the 37-116 is a bit more difficult (sorry!) as it has more caps buried in the middle of the bandswitch. The best advice is to just go really slowly and carefully and take a break if you're feeling impatient. The 37-690 uses the same RF subchassis as the 37-116 - so you can see pictures of that in my 37-690 restoration thread. There are a number of other good threads on the 37-116 - so be sure to read through as many as you can find. Your 37-116 looks to be in very nice shape.
