Welcome on the bench, big boy! 😍 #AnalogAudio #RevoxB77 #repair #thread

There are some issues that need to be addressed immediately on the #RevoxB77. The last time it was used, the tape badly mangled around the capstan and there are three pyrotechnic capacitors ready to explode. #AnalogAudio. Overall it is very crusty.

Now the capstan is muuuch better. #analogaudio #RevoxB77

The #RevoxB77 more or less works, but definitely needs a lot of care. I need some spares for the switches’ levers, the VU meter lamps and the ball bearings. I think I will change the electrolytic caps but in s second moment.

Hey you 😠

I put an X on all bad or very bad capacitors, tested in-circuit. In the audio circuits I only found two bad tantalums, but on this board (main logic) almost all electrolytic capacitors are abysmal. #AnalogAudio #Repair #RevoxB77

I ordered some new levers for the broken switches, so this means that I have to remove the PCB near the main panel. It was dirty (as everything inside this deck), so I could clean it. The main speed selector was very oxidised, so I cleaned it, too. #AnalogAudio #RevoxB77 #Repair

I cleaned and greased with high viscosity silicone oil (500 000 cst) the shaft of the tape tensioner. Now its movement is slightly dampened, as it should be. #repair #AnalogAudio #RevoxB77

I #3Dprinted a NAB adapter and did a test fit with a 10.5 in Agfa reel. It already looks amazing 🤩 I can’t wait to receive the spares I need to put everything together again.

Little by little 🤩 #AnalogAudio #RevoxB77 #repair #rReelToReel

I received some spare pieces for the #RevoxB77, motor capacitors and ball bearings. Someone tried to lubricate the reel ball bearings, but they were completely shot. #repaired #AnalogAudio

Since I had to remove the brake, I installed the new belts for the counter and I put it back on place. The old belts basically disintegrated, one was clearly a hack. Now everything is very smooth and works perfectly. #RevoxB77 #AnalogAudio #repair

The #RevoxB77 now works again 😍 I still have to calibrate it (I’m waiting for a calibration tape and VU meter lamps), but the sound quality is amazing 🤩 #repair #AnalogAudio, my little assistants validated it.

The trident fixture was missing on my reels and they were slightly deformed. My father in law took good care of them and I #3Dprinted a new retaining clip that works as the original one. #repair #RevoxB77 #AnalogAudio

I received some spare lamps for the VU-meters. Now they look much better! #RevoxB77 #repair #AnalogAudio

I received a test tape and performed a full calibration of the recorder. I tried to record the full Silk Dust original soundtrack. It works beautifully 😍#RevoxB77 #Repair #AnalogAudio https://on.soundcloud.com/bU3QZngX3zWSE4mdA

This must be the longest object I’ve ever bought in my life 🤣 And I bought two NAB pancakes of it! I have now 2.2 km of LPR90 magnetic tape to record my music 😍 I’ll calibrate the bias for it and I’ll start by recording again the Silk Dust soundtrack 😉 #AnalogAudio #Repair #RevoxB77 #IndieMusic

I wrote a post on my home page (blog) to summarize briefly all that I have done on the Revox B77 mk II: http://davbucci.chez-alice.fr/index.php?argument=varie/revoxb77/revoxb77.inc&language=English #repair #AnalogAudio #RevoxB77 #webpage

@davbucci
Nice work Davide.