uher VARIOCORD 23 User Manual

Schutzgebühr DM 5.-

uher VARIOCORD 23 Specifications

General

Type	Reel-to-Reel Tape Recorder
Inputs	Microphone, Line
Outputs	Line, Headphones
Tape Speed	9.5 cm/s, 19 cm/s
Reel Size	18 cm (7 inch)
Heads	3 (erase, record, playback)
Track System	4-track, 2-channel stereo
Signal-to-Noise Ratio	50dB
Wow and Flutter	0.15%

Summary

Hinging the Recorder Out Of Its Case

Transport Mechanism

Clutches

Modifications Stage

Rewind (Modification 1.15)

Checking and Adjusting the Tape Tension Comparator

Checking and Adjusting the Pressure Between the Pressure Roller and the Capstan

Checking

Measures the pressure applied by the pressure roller to the capstan.

Adjusting

Details adjusting pressure roller pressure and tape guide height.

Checking and Adjusting the Pause Control

Checking

Checks pressure roller lift distance from capstan in pause mode.

Adjusting

Sound Heads

Erase Head

Instructions for replacing and aligning the erase head.

Recording-Playback Head

Guide for replacing and aligning the recording-playback head.

DIA-Pilot-Head

Instructions for replacing and aligning the DIA-Pilot head.

Checking the Automatic Recording Level Control A 501

Checking the Automatic Recording level control A 502

Regulator Adjustment (Variocord 23/63/63 S/63 DIA)

R 53 Recording Level Indication

Adjusts the recording level indicator for channel 1.

RF Premagnetization

Adjusts RF premagnetization for optimal frequency response.

R 54 Balancing and R 55 Closed-circuit Current of the Final Stage

Balances output stage and sets quiescent current.

Measuring the Noise Voltage

Measures signal-to-noise ratio using a specific method.

Technical Data