No, the illness is tellurium copper terminal.
the KVD is so tempting (and would be useful), but the damn rotary switches .... there is none in the "cheap end" of product that would suffice as far as I have been searching in a few catalogs.
Now what I buffer each decate with sufficient type OPA and add offset trim as in "calibrated pot" scheme from days now gone. Then I could use 10k resistor in each decade as the buffer prevents them to see each other electrically. I wouldn't need to go smaller and smaller values in each decade and became a victim of the contact resistance fluctuations. This solution naturally restricts the divider to only low voltages inside the operation range of the buffers
Quotethe KVD is so tempting (and would be useful), but the damn rotary switches .... there is none in the "cheap end" of product that would suffice as far as I have been searching in a few catalogs.Have you looked in ebay?
I found a number of vendors selling dual gang rotary switch - quality - do not know.
eg
http://www.ebay.co.uk/itm/Band-Channael-Rotary-Switch-2P11T-2-Pole-11-Position-Dual-Deck-E8I-/182406735547?epid=1487137967&hash=item2a7849e6bb:g:t6kAAOSw5cNYaRy-QuoteNow what I buffer each decate with sufficient type OPA and add offset trim as in "calibrated pot" scheme from days now gone. Then I could use 10k resistor in each decade as the buffer prevents them to see each other electrically. I wouldn't need to go smaller and smaller values in each decade and became a victim of the contact resistance fluctuations. This solution naturally restricts the divider to only low voltages inside the operation range of the buffersOnce you deviate away from the ratio of one decade to the next - you no longer have a KVD (you do realize that dont you?).
The genious of the KVD is that each decade seeing a perfect decade divide down (do the maths on resistor parallel and series combination and you will see what I mean). It also means that ALL the resistors MUST be exact match value wise and temp co AND each decade ration MUST be exact.
Good luck with your recovery
It seems that I finally got the volt-nuttery infection.
...
Is there any cure for this illness?
By all means, fix the reticle illumination IMMEDIATELY!
Otherwise, your mind will deteriorate and you will have an urgent desire to purchase a brand new oscilloscope.
You will have nightmares, you will have hallucinations.
Until one day, innocently browsing the internet you'll find an oscilloscope you cannot resist! The road to perdition leads from there.
But to tell you the truth, it is a sweet, sweet road.
the KVD is so tempting (and would be useful), but the damn rotary switches .... there is none in the "cheap end" of product that would suffice as far as I have been searching in a few catalogs.
No, the illness is tellurium copper terminal.
the KVD is so tempting (and would be useful), but the damn rotary switches .... there is none in the "cheap end" of product that would suffice as far as I have been searching in a few catalogs.
What about using relays? Then the switches can be cheap or implemented digitally.
No, the illness is tellurium copper terminal.
Google "tellurium breath"... fun stuff.
Vtile that circuit is more an architectonic masterpiece.