Unlike me, my older brother didn't skip designing with tubes. So I asked when I get a R2R, will he make a tape pre-amp for me and he said yes. Are there any articles on folks who have done the same, EQ curves, etc?
If you brother has the time I would recommend getting the service manuals of the old tube Studer tape machines. They are full of information, complete circuits, alignment procedures - it is all there!
Hi Amir
You are a stranger guy in looking more things around before the main R2R, you should have soft ware tapes first till tape come back to market still has to wait for a while
Almost 50 years ago I had my first tube amp Sansui 300 has a tape head in put beside MM phono, they can sound similar to me at the level in that age, also I have a SONY transport to play with, later I got a repro amp broad dumped out by TEAC in transistor, I paid huge money for a test tape of alignment then it sounded better than directly without any adjusting, this means R2R repro preamp is not like RIAA preamp needs match to each machine, so I believe to keep the EQ and adjust section of the original design for the machine is better way or only change the out put section into tube gear like those super Hi End DAC with a tube out put will sound different, better or not up to your favor
C 37 had been told the best tube recorder, but to copy their circuit quite difficult to get the same parts because their a lot of pre-set inductors for frequency control use also tube ECC 188 and ECC 283 very expensive, of cause you can replace with 6DJ8 and 12AX7 but the sound will be different too will not same as their designed
cheers
tony ma
Suggest you/he look at the schematics for 1950's tube preamps such as Marantz, Mac, Fisher et al to see how they implemented tape playback. Most all the preamps had a tape head input. Marantz even had a HF equalization control on the back.
And - have fun
Suggest you/he look at the schematics for 1950's tube preamps such as Marantz, Mac, Fisher et al to see how they implemented tape playback. Most all the preamps had a tape head input. Marantz even had a HF equalization control on the back.
And - have fun
The Eros is not that expensive, the Retro is at @5Kusd, I have heard them both and I liked them, but I do not own any of them since my deck is plug-and-play and also has recording capabilities.
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