Realistic TM-101 LoFi mini-tuner

General:

Around 1980 Tandy 'Radio Shack' company came with its Realistic TM-101 tuner to be used with their SA-101 amplifier.

 

The TM-101 was made in Japan and all transistor and has 1 IC for multiplex stereo.
It has AM & FM.

 

Service manual:

Click here to download the schematic diagram of the TM-101

 

Dial ^

 

special futures:

Specifications:

Distortion (THD 20Hz - 19kHz) < 3%
AM/FM 88-108 MHz
Signal/noise ratio: 60dB Stereo max.
2 x RCA  output in back,
Very light and small footprint amp.
Size: 3.5" x 9.25" x 6 7/8" (HWD)

 

Manual ^

 

interior ^

 

Well built small tuner.

PCB  ^

 

Modifications:

You may replace some capacitors and resistors in the power supply and power rail.
In this tuner the 2 FM front-end transistors 2SC930 were broken and replaced.
 

 

 

 

different version inside ^

Sound:

The sound is good.

 

© Hans Hilberink - PE1MMK ® 2003 - Last update: 10-11-2024.