Bildegalleri
(1/6)
2x API 3124+ 4ch mikrofonforsterker med CAPI CA-0252 opamper og originale
Til salgs
25 000 kr
Be om at selgeren sender med Fiks ferdig! Det er trygt, raskt, og du får varen levert til adressen din. Les mer
Beskrivelse av varen
Tilstand: Pent brukt - I god stand
Selger to strøkne API 3124+ med CAPI CA-0252 som jeg opplever tar disse til et nytt nivå. Originale opampene følger også med, men i de to settene av 4 er det 1 som ikke funker i hvert. Altså 3 fungerende originale per sett med 4.
Kan legge ved 4/8x -20db inline pads til å ha på utgangene om det ønskes for å kunne kjøre dem hottere.
Pris er per stykk.
Om opampene:
The CA-0252-DIY is a pretty unique kit of parts. Such a version has never been realized before as far as I know. I am being as faithful as possible to the exact type of parts used in the early 1970's OG 2520s. I know this because I was gifted an unpotted 2520 from a friend a few years before we moved to Nashville. My friend got this amp from a trade show in the early 1970's. I looked at it a few times and thought "no way". After it living in a drawer of parts for years, I pulled it out in the fall of 2019 and jumped into the deep end. Interestingly, when the same friend saw on social media that I was finally working on it, he sent me 2 more unpotted amps and a few never populated PCBs. That said I had plenty of OG data to pull from!
Input transistors
The OG input transistor pair were BC414Cs. In researching these parts, I found BC237C to be the recommended replacement. So, due to supply issues, we chose to use BC237Cs for these. To our ears they were closer to the OG than the commonly used BC550C etc.
Interstage NPNs
The OG was TIS98 for these 3 transistors. We have been using Fairchild TIS97s for our BT50s so decided to stick with them for this situation. Since TIS97s are long out of print and very hard to find, we had them custom made by a US manufacturer. Its actually amazing that can still be done!
Interstage PNPs
The OG was 2N5087 for these 3 transistors. I was able to procure a mother-load of NOS National Semiconductor 2N5087s so that is what we are using. They definitely sound different than the more recent Fairchild or ON Semi stock.
Output Transistors
The OG output transistor pair were metal can TO-39s, specifically BC141-16 and BC161-16. These are unobtainium and have been for years. We tried the Multicomp version and found them lifeless so we had them custom manufactured like the TIS97s. They are outstanding parts and a very big part of the tone.
NB: Knappen for å vise hele beskrivelsen har kun en visuell effekt.
Brukerprofil
Du må være logget inn for å se brukerprofiler og sende meldinger.
Logg innAnnonsens metadata
Sist endret: 2.1.2026 kl. 17:49 ・ FINN-kode: 436081340
