Renewed Pioneer RT-707 - Replaced all 10 2SC1344 transistors!! @davismv
Renewed Pioneer RT-707 - Replaced all 10 2SC1344 transistors!!  @davismv
Uploaded November 2024 | Updated September 2026, 2 weeks ago
Well, thanks to those last week who read my very long post and watched my somewhat exhaustive video.

I learned two things over the last week:

1) Don’t mess with the heads if worn (visually brought things back a little because I already messed with this)

2) Replace all 10 black legged 2SC1344’s with modern equivalents - KSC1845’s.

I will say this thing is quiet and playing like a champ tonight.

While I didn’t record this, the recording/playback levels are nearly flat when I give it a straight 1K tone.

Probably needs all new capacitors and such but it’s 10 fold better than what I bought at Goodwill for $4.99.
Renewed Pioneer RT-707 - Replaced all 10 2SC1344 transistors!!Technics SA-550 and SA-850 Amp BiasingPioneer QX-8000A Quad 22WPCx4 WOW!Thorens TD145 MkII turntable from 1977 with original Shure M95ED cartridge and M75 stylus.Onkyo TX-840 60WPC Receiver, late 80s.90s Central Illinois Independent Bands Demos & Cassettes - and some from ChicagoPioneer SX-60, 80WPC, 1983Pioneer SX-1250, 1978, 160WPC - Partial RestorePioneer SX-1050 Receiver, 120WPC, 1976Pioneer QX-747 “Pop” shortly after power on fix - D313 Regulator ReplacementRealistic STA-120B 40WPC Receiver from 1973Optimus Radio Shack (Sherwood) STAV-3100 100WPC A/V Receiver from 1990.
Mark Davis |

Renewed Pioneer RT-707 - Replaced all 10 2SC1344 transistors!!

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