[Amps] 4Z4RB amplifiers

Bill Turner dezrat at outlook.com
Wed Jul 2 10:22:02 EDT 2014

4Z4RB has a number of SS amp boards for sale on eBay at attractive 
prices, but data on them is pretty scant. Nothing of bandwidth, IMD or 
duty cycle for example.

Here's one:


and there are many others.

Does anyone have any experience with these?  With no data I am pretty 

Thanks in advance,

73, Bill W6WRT
dezrat at outlook.com

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