Manual
3 
Built-in solid state soldering iron temperature control. 
FEATURES 
Unless otherwise stated
,
 all information in this section a
pp
lies e
q
uall
y
 to Model 1653A and 4655A
WIDE VOLTAGE RANGE 
Output voltage continuously variable from 0 to 150VAC. 
WIDE CURRENT RANGE 
Model 1655A 
Heavy duty unit handles virtually all servicing needs. 
Output current up to 3 amps continuous, 4 amps 
intermittent. 
Model 1653A 
Handles many servicing needs. Output current up to 2 
amps continuous. 
WIDE LOAD MEASUREMENT CAPABILITY 
Model 1655A 
Built in multi-function meter. 0-150V. Two current 
ranges of 0-2A and 0-4A for improved resolution. Current 
scales also calibrated in VA at 120V. 
Model 1653A 
Built in dual-purpose meter measures output voltage from 0-
150V and output current from 0-2A. 
ISOLATED OUTPUT VOLTAGE 
Built-in isolation transformer for safe servicing of “hot 
chassis” equipment. One isolated outlet on Mode 1653A, two 
isolated outlets on Model 1655A for greater convenience. 
BUILT-IN METER 
Model 1655A 
3-1/4 inch meter.  Multi-color scales. Overrange 
protection 
Model 1653A 
2 inch meter. Overrange protection. 
---Model 1655A offers the following additional features--
- 
POWER LINE LEAKAGE TEST 
OSHA, UL, and CSA power line leakage test capability; fast 
and safe measurement. 
EXPANDED LEAKAGE SCALE 
0-5mA (0-5000µA) leakage scale is expanded in most 
commonly used 100-500µA portion, compressed to 5 mA 
  full scale. Overload protected. 
CIRCUIT BREAKER OVERLOAD PROTECTION 
Isolated output protected by easily reset circuit breaker. 
SOLDERING IRON TEMPERATURE CONTROL 
Built-in solid state soldering iron temperature control 










