jorwed_
Audio Arkeologen
Har en TD-160 Custom med en SME 3009 SII improved som skal få ny pickup. Jeg har en Counterpoint SA-1000 preamp som er modifisert endel, også i riaa delen.
Spesifikt om RIAA:
Install Moving Coil Step-up Transformers, using Sowter 8055 1:10 MCstepup transformer to match with client's Goldring Erioca LX cartridge,loading to be 100 ohm.SA-1000 will be modified as follows:
1. Route Phono Inputs to input of MC transformers.
2. Output of transformers (secondaries) will be connected to "MC LOADING"jacks on circuit board.
3. R1 will be removed from circuit board.
4. Grid of tube will receive biasing through 470K resistor at R2.
5. One pair of Naked Vishay resistors, 10,217 ohm, will be inserted into "MCLOADING" jacks on circuit board to present 100 ohm to the cartridge inparallel with R2.
6. Circuit board jumpers will be set up for phono "high" gain (normal)operation -- client to use front panel phono "high" position for best sound.
Read more at http://www.hifisentralen.no/forumet...r-hvem-har-gjort-det.html#XTjW8d0dIAX1UpXW.99
Forrige eier (av preamp) brukte altså en Goldring Erioca LX.
Innspill ønskes på både den og andre PUs i prisklassen opp til MAX 10.000,- Helst godt under.
MC low output er en forutsetning vil jeg tro.
Spesifikt om RIAA:
Install Moving Coil Step-up Transformers, using Sowter 8055 1:10 MCstepup transformer to match with client's Goldring Erioca LX cartridge,loading to be 100 ohm.SA-1000 will be modified as follows:
1. Route Phono Inputs to input of MC transformers.
2. Output of transformers (secondaries) will be connected to "MC LOADING"jacks on circuit board.
3. R1 will be removed from circuit board.
4. Grid of tube will receive biasing through 470K resistor at R2.
5. One pair of Naked Vishay resistors, 10,217 ohm, will be inserted into "MCLOADING" jacks on circuit board to present 100 ohm to the cartridge inparallel with R2.
6. Circuit board jumpers will be set up for phono "high" gain (normal)operation -- client to use front panel phono "high" position for best sound.
Read more at http://www.hifisentralen.no/forumet...r-hvem-har-gjort-det.html#XTjW8d0dIAX1UpXW.99
Forrige eier (av preamp) brukte altså en Goldring Erioca LX.
Innspill ønskes på både den og andre PUs i prisklassen opp til MAX 10.000,- Helst godt under.
MC low output er en forutsetning vil jeg tro.
Sist redigert: