- Focus tension on old Zeiss microscope. - 2 Updates
- Need Schematic Bose Acoustic Wave AWRC1G - 1 Update
- Bose Radio Model AWRC1G Schematic - 1 Update
| peter@easthope.ca: Jun 13 08:38PM -0700 Hello, The focus adjustment knob from a Zeiss surgical microscope is in the photos here. I'd guess the scope was built in the 1950s or '60s. http://easthope.ca/ZeissKnob1.jpg http://easthope.ca/ZeissKnob2.jpg The shorter setscrew here was in the knob when I began work on it. The longer screw is one I made. http://easthope.ca/ZeissSetscrew.jpg The knob threads onto the focus adjustment spindle. The female thread in the knob is visible in the photos. Tightening the knob on the spindle increases tension on a clutch to prevent the head of the scope from sliding out of focus. Tightening the setscrew in the knob should lock it on the spindle to hold the tension setting but the setscrew has no effect. Obviously the setscrew would spoil the spindle thread by landing directly on it. The setscrew must push on an intermediate part with a thread matching the spindle. I don't understand why it doesn't work. The longer setscrew is still too short? Not an electronic problem but similar knobs were used on some vintage high end electronic equipment. Ideas? Thanks, ... Peter E. |
| Arie de Muijnck <noreply@ademu.com>: Jun 14 03:56PM +0200 > high end electronic equipment. > Ideas? > Thanks, ... Peter E. I have fixed items like that by inserting a small plastic plug between screw and main thread. The plastic deforms without damaging the main spindle thread, and securely clamps the spindle. Arie |
| Ed <8020b7b5b36b33912d8f53417ef10944@example.com>: Jun 14 12:00AM Hi Sparkey, I have a Bose Wave Radio model no AWRC1G and I am looking for an electronic schematic. Were you able to locate one? Thanks -- For full context, visit https://www.electrondepot.com/repair/need-schematic-bose-acoustic-wave-awrc1g-137107-.htm |
| Ed <8020b7b5b36b33912d8f53417ef10944@example.com>: Jun 14 12:00AM Afra, can you supply me with a schematic diagram for a Bose AWRC1G wave radio? Ed -- For full context, visit https://www.electrondepot.com/repair/bose-radio-model-awrc1g-schematic-15854-.htm |
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