Marantz MR 250 Restoration Part 3: Replacing Lamps, Dial String and More

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The last and final chapter of the restoration of a Marantz MR 250 receiver from the 1970s. Replacing some remaining capacitors, inserting new (LED) lights and building a smoothing circuit for the LEDs. Also adjusting the idling current and the DC bias. Plus some unwanted and unplanned adventure with the dial string...

Here's the first two parts:
Part 1: https://youtu.be/EckBcyRIvXU
Part 2: https://youtu.be/T-X_K9u26kI

I got the LED replacement lamps from eBay here: http://www.ebay.de/itm/7x-LED-Lampen-Marantz-Vintage-Pioneer-Sansui-Tuner-Receiver-Licht-Lamp-Ersatz-/282601022981?hash=item41cc556605:g:GnIAAOSwNRdX5RFY

Check out Maxxarcade's channel for more audio restorations: https://www.youtube.com/user/Maxxarcade

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Tags:
Marantz
Receiver
Restoration
Vintage Audio
MR250
MR
250
230
215
Recap
Capacitor
Dial lights
Lamps
LED
Smoothing
DC
AC
Dial string
Idling current
DC bias
adjustment
replace
replacement
restringing
lights