Solid State 3TF7 Ballast tube for Collins R-390 and others

Name: Solid State 3TF7 Ballast tube for Collins R-390 and others
SKU: 127824470053
Price: 31.00 USD
Availability: InStock

$18.60

$31.00 -40%

Brand AE

Condition New

Item ID 127824470053

Brand	AE
Type	3TF7
Model	R-390
MPN	3TF7
Country of Origin	United States

Check the listing for details. Solid State 3TF7 Ballast tube for Collins R-390 and others. Condition: New, Made in United States. Listed at 31.00 USD. Offered here is a solid state current regulator to replace the 3TF7 ballast tube in the R-390 and other receivers. It regulates AC heater current to a nearly constant 300 mA using a modern linear regulator IC. the I've sold many of these in the past and have recently started building them again due to a recent request. Note: I have been told that these will not work in the R-725

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