Hi Simon,
for feedback, the one I had in hands ( an Alpha Plus ) has seen a new TL1086 fitted at SAA7220 and recaped/osconed board, OPA604 at I/V andLME49710 at buffer. 2x 3.3µF 750V Wima MKP4 at output.
When I've asked the owner if it was "better" he said, "no, it's far more greater"
Seems these opamps work nicely, anyway you'll go for the D1
Pics of your work please !
Matthieu
for feedback, the one I had in hands ( an Alpha Plus ) has seen a new TL1086 fitted at SAA7220 and recaped/osconed board, OPA604 at I/V andLME49710 at buffer. 2x 3.3µF 750V Wima MKP4 at output.
When I've asked the owner if it was "better" he said, "no, it's far more greater"
Seems these opamps work nicely, anyway you'll go for the D1
Pics of your work please !
Matthieu
One nice thing about the Arcam is the filter caps around the 1541 are through-hole polyesters. In the Philips CD650 they're tiny SMD and might be ceramic!
Simon
I desoldered these on my 160 and replaced with 470/220n film smds.
I've got a set of PPS for this job from Farnell. Not fitted yet tho!
I'm using varying values as per the info on the TDA in EC's NOS thread.
MSB
1uF 9694315
0.22uF 9694277
150nF 1657955
33nF 3835303
33nF 3835303
8.2nF 9694889
8.2nF 9694889
LSB
I think the changing value is all to do with the timing and bounce of the bit landing on the pins. It should help to align the timing and be more accurate. See the link in post 963 for details
Ian
I'm using varying values as per the info on the TDA in EC's NOS thread.
MSB
1uF 9694315
0.22uF 9694277
150nF 1657955
33nF 3835303
33nF 3835303
8.2nF 9694889
8.2nF 9694889
LSB
I think the changing value is all to do with the timing and bounce of the bit landing on the pins. It should help to align the timing and be more accurate. See the link in post 963 for details
Ian
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Those are the ECPU ones that I'm actually using. Farnell have them as PPS but if you check the panasonic website for the ECPU series they're listed as plastic resin not PPS.
Maybe just confusion in the name.
Film Capacitors | Passive & Electromechanical | Panasonic Industrial Solutions Global
Pete
Maybe just confusion in the name.
Film Capacitors | Passive & Electromechanical | Panasonic Industrial Solutions Global
Pete
Superreg improvements
Hi,
I'm starting on the mods for my Mission 7000 which is very similar internally to my 160.
I'm very happy with the sound from the 160 where I have seperate LM317 based Rayregs for opamps +-15, DAC +-5,-15, Saa7210 +5 and clock +5.
I have a flea ready for the clock supply in the mission and I'm toying with using bought-in superregs for the other 6 supplies. That's going to cost somewhere between £200 - 240 (depending on whose regs I use). That's quite a lot of money so I'd expect a pretty good step improvement. Anyone else made this step and can advise on results / value for money?
Regards
Pete
Hi,
I'm starting on the mods for my Mission 7000 which is very similar internally to my 160.
I'm very happy with the sound from the 160 where I have seperate LM317 based Rayregs for opamps +-15, DAC +-5,-15, Saa7210 +5 and clock +5.
I have a flea ready for the clock supply in the mission and I'm toying with using bought-in superregs for the other 6 supplies. That's going to cost somewhere between £200 - 240 (depending on whose regs I use). That's quite a lot of money so I'd expect a pretty good step improvement. Anyone else made this step and can advise on results / value for money?
Regards
Pete
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