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Showing posts from June, 2015

Rollei 35 repair

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I found this on the internet reasonably priced to be worth a gamble. It had a couple of dents but no serious signs of abuse. I've been hankering for this camera as a college kid in the early 80s. Instead, I chose a Pentax K1000 SLR which I could upgrade with a zoom lens ;)

This particular sample was made in Singapore in the early 70s. Not the more collectible '66-'70 or post '81 manufactured in Germany.

When it arrived, the 40mm f3.5 Tessar lens was clean and clear but shutter speeds below 1/30 functioned like B and the lens retraction mechanism was erratic. So I consulted my friend, Google.


This excellent time lapse video shows the top cover disassembly in detail.

1. Green arrow - dried up lubricant in the slow escapement gear train causes all slow speeds to function like B. A few drops of lighter fluid in this area should loosen dried lubricant. Cycle through the slow speeds. You should start hearing gears whirring. Keep cycling the slow speeds until the fluid is d…

6F8G

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I recently discovered a few of these cool-looking ST glass equivalent of a 6SN7 in my tube stash. This tube plugs into an octal socket but has different pin outs (vis a vis 6SN7) and requires a 1/4" grid cap for the second triode section. So I rewired the line stage section of my JEL mono preamp to use it.

Not sure if it sounds better,
but it certainly looks a lot better ;)

Altec 605B Duplex

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After years of storage the Altec 605B is recommissioned in the mono system. The plywood open baffle is painted in gray primer as an homage to Altec utility cabinets. I am using the stock Altec XO N1600C circuit but built using paper in oil caps and a low DCR choke. 


"Benny Rides Again" Chess Records, mono LP