Suggest Newbie(ish) equipment kit recommendations please.

PRR

Member
Paid Member
2003-06-12 7:04 pm
Maine USA
I have never needed glasses
Glasses to protect your eyes!!!! Very few repairs are possible. I got new plastic lenses, but my retina and cornea and eyelid scars are forever.

And yes, glasses to focus. The so-called "normal" eye, relaxed, focuses at infinity (rounded to >20'). When young, it can tense-up to focus inside 1 foot. That's just close enough for 1960s electronics, and over time strains your eyes. A "+3.25" reading lens makes an infinity focus into a 1-foot focus, comfortable for hours. If you are under 40, you can strain-in more lens power and see well at a half-foot for short term.

I was near-sighted and always focused 13"-17". Reading bare-eye was comfortable, I could strain and see the tip of my nose or a phono needle, but driving required correction. Past 40 I also lost that near vision and collected near-lenses.

For simple "readers" magnification doesn't really happen, they allow you to bring the book/work closer so it looks bigger without going fuzzy.

Now that I am hard-corrected for infinity, I use +2 readers for a PC screen at arm's length, +3.25 or two +2 over each other (about +4) for small parts. Readers are rarely sold stronger than +3.25 or so. I buy basic readers for $1 at DollarTree. (But my all-day PC peepers are per my prescription, slight astigmatism, $8 at Zennis.) A friend just paid $20 for a pack of three +2.5 brand-name at the discount warehouse.
 

NickKUK

Member
2019-12-28 9:16 pm
If you're probing power supplies or valve amps then a differential probe (1KV) would protect your oscilloscope investment and you. The same naturally with the multimeter, a good 1KV safety rating and 600-1KV probes). Alot of entry level oscilloscopes and cheap multimeters have 300V max probes.

Other bits I forgot:
  • isolation transformer (safety - also learn about problems with oscilloscope grounding causing shorts)
  • dummy load (you will want 2 of these)
  • switchable resistor network (useful rather than requirement)
  • IR thermal probe/camera. (more useful than a requirement)
There's techs out there happily servicing old 80s vintage tech with little more than a multimeter, a soldering iron and a logic probe. If you're doing old 80s/90s you may find a programmer useful for the specific chips you're most likely to find for your work.

I'm lucky a recent scan (first ever in 48 years) returned +/-0.25. The optician was rather surprised. So definitely keep an eye on your eyes.
 
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