As a whole different scheme that would have to be revised too. But we have no practical problem with that ground schematic yet. Make it first.
Good news: today arrived the 8 caps 0,1uF/600V russians teflon T-3, wow are terribly bigs comparing with the 0,1uF/200V russians teflon T-2.
Now only need to measure all caps & I will start mine Simplistic:=)
An externally hosted image should be here but it was not working when we last tested it.
Now only need to measure all caps & I will start mine Simplistic:=)
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FT-3 are the best of the lot.... They have an enormous linearity over the entire spectrum.
I am populating my boards now... hope to hear something in the weekend 🙂
I am populating my boards now... hope to hear something in the weekend 🙂
Only for fun, pic with measured FT-3
An externally hosted image should be here but it was not working when we last tested it.
Hi guys,After having recently revived my 30 year old Logic DM101 I've been scanning this thread for a few days now, only got to page 230 and decided to take action, as I had most of the parts collecting dust.
Unfortunately I don't have enough K170s or the Mosfets for the shunt so I'll need to improvise to get this baby playin tunes.
No exotic caps or Rs yet as I need to test the water first so to speak before layin oot the dosh!
Anyway this is what I came up with.
Hi Ricardo Great work Hows it going? You got a scope yet?
Unfortunately I don't have enough K170s or the Mosfets for the shunt so I'll need to improvise to get this baby playin tunes.
No exotic caps or Rs yet as I need to test the water first so to speak before layin oot the dosh!
Anyway this is what I came up with.
Hi Ricardo Great work Hows it going? You got a scope yet?
Attachments
Looks orderly. Is it the MC version? What TO-220 transistors you got in your inventory, what other JFETS? Maybe we can think of a shunt with the parts you got. The supply is a big part of its sound.
Looking good indeed. Always rub clean those tarred (silver plated?) FT-3 ends before assembly by the way.
I did rub clean but only the holes where i soldered the wires....
I will try and clean it further.
I will try and clean it further.
After all the past troubles, I am very carefull about solder joints 🙂
I finished building the two boards ! The psu is working very well.
Before I connect anything I must be sure there are no errors in the p2p.... It will take some time to compare the boards links with the schematic.
Tomorrow I will get the missing "tuning" caps.... finally I will work on the gnd and power connections.
I finished building the two boards ! The psu is working very well.
Before I connect anything I must be sure there are no errors in the p2p.... It will take some time to compare the boards links with the schematic.
Tomorrow I will get the missing "tuning" caps.... finally I will work on the gnd and power connections.
Hi Ricardo,
Could you please post a photo of board underneath. I'm trying to figure out how to secure those Mica monsters (I have 2 of them for both RIAA values... ).
Could you please post a photo of board underneath. I'm trying to figure out how to secure those Mica monsters (I have 2 of them for both RIAA values... ).
Desolder the metal ring legs from under the caps, make suitable holes in the board, glue the caps in place and then solder them. 🙂
Since I'm using teflon sheets for my constructions I could heavily modify them converting them to Teflon and air dielectric ...😀
A good glue for teflon anyone ?
A good glue for teflon anyone ?
Hi Andrew,
I don't know about the system but I appreciate your generosity..😉
Hi Ricardo,
Read this page http://www.diyaudio.com/forums/power-supplies/143693-simplistic-salas-low-voltage-shunt-regulator-61.html#post1860076
I don't know about the system but I appreciate your generosity..😉
Hi Ricardo,
Read this page http://www.diyaudio.com/forums/power-supplies/143693-simplistic-salas-low-voltage-shunt-regulator-61.html#post1860076
Nice work Ricardo🙂
Very good components selection:
Resistors: 1 shinkoh, 1 Takman & the rest Kiwame?
Elec. Caps: BG NP, Elna Silmic II, Rubycon ZL?
Film Caps: Obbligato, Russian Silver Mica, Russian FT-3 teflon
What about how's sound?
Teflon board by Erno's Borbely:
An externally hosted image should be here but it was not working when we last tested it.
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