this is the TT for which I would have built the Simplistic.
but even here problems hummmmm.
these gear would need some changes to make them acceptable as, for example, the IEC filter and the RCA.
but even here problems hummmmm.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
these gear would need some changes to make them acceptable as, for example, the IEC filter and the RCA.
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Lets make an easy experiment. Try one bridge and filter capacitors bank common for both regulators and one white cable return to chassis only. Disconnect the single transformer's common secondary from the unused raw supply.
Watch the voltage drop on your power resistor between bridge and capacitors so the raw DC to stay in limits with now double the current passing. 5V more input than Vout of the regulators. 10V is better.
Hi all,
As you might remember my posts, I made my FSP with S&B x5 SUT at the input in order to isolate cart noise. It works fine that way, but I made simple resistance measurements on my cart today. So, it is direct reading from my cart backside pins (please see attached picture). I see some cross-talk between channels. Is it normal? I thought that coils should be absolutely separated from each other. Am I wrong?
As you might remember my posts, I made my FSP with S&B x5 SUT at the input in order to isolate cart noise. It works fine that way, but I made simple resistance measurements on my cart today. So, it is direct reading from my cart backside pins (please see attached picture). I see some cross-talk between channels. Is it normal? I thought that coils should be absolutely separated from each other. Am I wrong?
Attachments
I have never measured the coil resistances for fear of leaving a magnetic signature in the motor.
But I would expect the two coils to be isolated.
Your measurements are unexpected.
But I would expect the two coils to be isolated.
Your measurements are unexpected.
No. I disconnected all leads and measured directly on cart disconnected from everything.
My first test ran on TT cable when cart was connected (No SUT or Phone connected, RCAs were in air) and I saw some low resistance between Red and White (Signal R and Signal L). Like RCA central pin L to RCA central pin R. Then, I disconnected cart leads from cart and ran point to point from RCA to silk leads. No cress-talking there. Finally, I measured on cart itself when cart was on my table by itself and results plotted on my picture.
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My first test ran on TT cable when cart was connected (No SUT or Phone connected, RCAs were in air) and I saw some low resistance between Red and White (Signal R and Signal L). Like RCA central pin L to RCA central pin R. Then, I disconnected cart leads from cart and ran point to point from RCA to silk leads. No cress-talking there. Finally, I measured on cart itself when cart was on my table by itself and results plotted on my picture.
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Ask at the cartridge service that they reworked its engine for best info on how and why it should react on DMM I would guess. There is a fear for using DMM in general, but I have not heard of a broken cart from those who just did it. Not all DMMs put out same current level though.
You use one SUT per channel connected as +14 dB and you get channel crosstalk? Stevens & Billington Limited Audio transformers
Measure without cart.
Measure without cart.
No, it is not related to SUT. I measured cart itself disconnected from everything, dismantled from TT arm and placed on my anti-static grounded table pad.
Blue and white pins should isolated from red and green on a normal working cart.
You should check your cart.
You should check your cart.
This is exactly my point of view. Going to call guy who re-tip it about 5 moth ago. Hope he will admit responsibility to the way how wrong he fixed it. Update you guys soon.
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