Triplett 630-APLK classic analog VOM
I hadnt noticed this one before, perhaps im blind lol
That looks on par with the old avo 8 or similar, i love the wheel of resistors, what an unusual way to do it, very well insulated from each other, very nice
When you did the 5v test did you gently tap the case with a finger, my old avo 8 allways settles to a slightly higher value, it may be much more accurate than the test shows.
Smashing vom, ive never seen one like that before, thanks
Oh yes, my first bit of test equipment was a Micronta VOM, so tapping on the meter face became a habit. But the taut band movement in this Triplett pretty much eliminates that stickiness from jeweled movements.
You may have heard of the famous Simpson 260 VOM (pretty much a standard here in the States, like AVO in the UK). The Triplett 630 was a contemporary and a worthy competitor. Easier to use in my mind, but then again I could only afford the Radio Shack stuff at the time.
Oh yes, i found a site for the Simpson Vom’s, the outward design seems to stay much the same over the years and thats great as you learn one and you know nearly every model
The earlier Simpsons i like better, the white printing and overall look just appeals to me
This old avo8 mk2 was given to me in a broken state, no glass, glued case (so it was dropped) and the scale just didnt line up in a linear way, after checking every part i found a small moveable bar bolted to the side of the movement, i just had to move it a little lol, after adjustment the linearity came back and all modes had a decent accuracy
Im sure you know exactly what i was tampering with, i didnt lol.
I do not have any real experience with analog meters so what stands out to me is that I do not see a PCB. (I do not count the current shunt.) It is very interesting to look at how it was made.
I am curious about the purpose, if there is one, of the mirror behind the needle. If someone could take the time to enlighten me I would appreciate it.
Helps to eliminate parallax error. When the needle and it’s reflection line up, you know you’re looking straight at it.
My 630 has a loose switch assembly. Everything turns and nothing seems broken, but I can’t figure out how to get the red button off. Any ideas?
If you’re referring to the red selector knob on the front, mine just pulls off of a flatted 1/4-inch shaft, with a little spring-metal insert providing the grip. The nut on the shaft looks like it might require some pin pliers, a lens wrench or somesuch to tighten it.
Estudo eletronica e estou em fase do término do curso,e gostaria de poder ter a chance que meu falecido Pai teve,trabalhar com um V-O-M-
Triplett 630- ou o modelo V-O-M-800 por esta razão solicito informações sobre a compra e forma de pagamento, ou uma doação ( pode ser usado e não precisa estar funcionando,só precisa estar em bom estado,aqui darei o meu jeito, ),me ajudem se puderem,agradeço pela atenção recebida ficando no
aguardo e segue o meu muito obrigado desta tão conceituada organização.
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