Pioneer CT-3000

Specs
2 heads (R/P: hyperbolic sendust, E: ferrite),
1 DC servo motor,

3 digit linear counter,

Dolby NR,

L+R mic in,

Nippon Chemicon SL / LR, Elna, Marcon, Panasonic BP components,

No 25-15000 Hz (35-14000 ±3 dB),
CrO2 25-17000 Hz (35-16000 ±3 dB),
S/N 56 dB (Dolby off), 66 dB (Dolby on, 15 kHz),

W&F 0,05% (wrms),
mm 382x84x329, kg 6,4.

Yamaha M-4

 

Specs

2x120W@8Ω/20-20000Hz,
2x170W@4Ω/20-20000Hz,

4x2 Toshiba 2SC2460 2SA1050 power transistors,

2x15000µF Nippon Chemicon filter caps,

Nippon Chemicon SL, Panasonic CE, Elna components,

2 pair speakers out,

L & R power indicators,

L & R level,

mm 435x145x374, kg 18,5.

Philips RH 520 (22RH520/00Z)

Specs

2x15W@4Ω/20-20000Hz,

4x BD202 / BD201 power transistors,

2x3300µF Philips filter caps,

Philips, Nichicon components,
dual core power transformer,

5-pin DIN 41524 source in,
DIN 41529 speakers out (2 pairs),

mm 420x117x280, kg 5,0.