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wd40addict · 26th Sep 2019, 9:09 am

It was the high level of hiss that led me to design my own electronics for my Brenell pictured above.

Prior to this I had used a Collaro / Magnavox 363 deck with the playback section of the Practical Electronics tape link circuit. This design dated from the 70s and used an FET for high impedance input feeding a 741used for gain and EQ. It sounded ok, but sadly the noise level from a blank tape was only slightly higher than the amplifier itself!

Eventually the 363s rubber died so I started to look round for a decent 3 motor deck to try my own ideas out. I found the Brenell and built an op-amp based playback pre-amp. This was much quieter than the PE design. Eventually I also added full featured record amplifiers.

26th Sep 2019, 9:09 am	#26
wd40addict Octode Join Date: May 2009 Location: Stevenage, Herts. UK. Posts: 1,518	Re: New amplifier for reel to reel It was the high level of hiss that led me to design my own electronics for my Brenell pictured above. Prior to this I had used a Collaro / Magnavox 363 deck with the playback section of the Practical Electronics tape link circuit. This design dated from the 70s and used an FET for high impedance input feeding a 741used for gain and EQ. It sounded ok, but sadly the noise level from a blank tape was only slightly higher than the amplifier itself! Eventually the 363s rubber died so I started to look round for a decent 3 motor deck to try my own ideas out. I found the Brenell and built an op-amp based playback pre-amp. This was much quieter than the PE design. Eventually I also added full featured record amplifiers.