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2250b

  1. PXL_20250603_010259365.MP.jpg

    PXL_20250603_010259365.MP.jpg

    2250B
  2. ocdecio

    Model 2250B Flyback diodes

    Does anyone know the proper installation of flyback diodes at the P700 on a 2250B? Here's the relevant schematic:
  3. Childof60

    Marantz 2250B restoration

    So, starting another restoration in a few weeks - this time a 2250B for a friend. I am not finding any previous threads that provide a substitution/upgrade list. Has anyone created a list for this cool receiver?
  4. M

    2250B protection relay

    Finishing up final component changes on this 2250B. Replaced R807 150 ohm 5 watt with 7 watt, and H808 and H811 with new BYQ28E-200E,127 rectifiers. Powered up fine with no issues (although didn't run up volume, just checked for 35VDC). Next I replaced all 6 transistors on the phono board...
  5. ocdecio

    2250B Power Switch

    This 2250B has an issue with the power switch that it won't stay engaged. Measuring resistance across the current connections indeed show the pads must be really worn out. Instead of swapping it out, I just connected them to the other side and that seems to work. Just wanted to ask and make sure...
  6. F

    Marantz 2250 Stereo Light Indicator Bulb

    I am looking to replace a non working stereo light indicator bulb. I found a replacement on ebay but shipping is high since I am in Canada. Would anybody know where to find the Bi-Pin Lamps 12v 40mA Bulb blue base bulb in Canada or if the following is a proper replacement...
  7. S

    2250B Rebuild

    HI Guys, I'm new to the forum, and rebuilding receivers. This is my first go at real electrical work aside from replacing a few resistors on my Fender DeVille amp and home electrical/splicing wires. I have soldered stuff in the past. I am an engineer by trade, so I understand it, but there...
  8. goldswimmerb

    Marantz 2250B rebuild thread

    Hey guys, figured I would post another rebuild thread since they seem to be taken well. Today's thread is for my ongoing project of a 2250B I got off of that one auction site listed as a parts unit, which is always fun. My goals for this unit are to get any known bad transistors out of there...
  9. R

    2250B broken Balance sliding potentiometer and audio issues.

    The balance slider pot on my 2250b is broken within. Any body know of a replacement? Can it be super glued? Or is the internal components can't be joined once severed like that? Found this while trouble shooting an issue with extremely low volume only on right channel and almost zero on left...
  10. P

    2250b - signal to internal amp and zone 2 amp

    I am the new owner of a beautiful 2250b. I currently have a set up that I love where my integrated amp provides a speaker level signal to stereo speakers (speaker A) and a speaker level signal to my sub (speaker B). It also sends a line level to a separate power amp with its own volume control...
  11. jd3rdcoast

    2245 & 2250B: Different sound quality left vs. right ouput. Recap time?

    Hi all; Long time member and avid reader. I have two recently acquired receivers 2245 & 2250B. Have replaced lights as needed, set Voltage, DC Offset and Idle-current respectfully. I notice that both units have slightly different left vs. right sounding outputs to HD77 speakers. 2245: L channel...
  12. C

    Marantz 2250B Selector Knob Broken

    Hi AK! I'm new here and just now getting into vinyl but man, am I ever hooked! My setup so far is a Realistic Lab-440 TT mated to a Marantz 2250B receiver with Marantz Model 7mkII speakers. The sound is fantastic for my purposes but I'm always looking for an improvement! With that said, my...
  13. Marantz 2250B

    Marantz 2250B

  14. My Marantz

    My Marantz

    Nudies For Yous Guys
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