When we have stock, the tubes will show up below and will be able to be added to the cart for purchase. If there are no tubes below, then we are out of stock.
December 19, 2014
PLEASE READ FULLY BEFORE CALLING
THE NEW RF PARTS 572B TUBE HAS ARRIVED.
RF PARTS will not accept new 572B orders until March, 2015.
As we have stock available, it will show up on our website.
It is there where you will place your order for 572B tubes.
Until further notice, RF PARTS will not accept back orders for this item.
Early 2014 orders are being shipped now in chronological order based on date order was placed.
Terry, in our sales department, will be contacting our customers as stock is available.
For the past several weeks we have been proof testing our first production run.
Tests indicate that these new tubes will compare favorably with the last U.S. made tube, the 1989 Cetron 572B.
Tube dimensions and power gain seem to be carefully controlled during manufacture.
However, RF PARTS will continue to do full lab testing on the 572B, as we do with all our transmitting tubes.
Regular shipments from the factory will be received through year 2015, with the next expected in early February.
It will be a while for us to catch up with the anticipated interest in this tube, so please be patient and watch for future announcements.
572B history, and status (PDF)
By: Merit Arnold
EXISTING 572B CURRENTLY ON THE MARKET
Since 1994, the Shuguang factory in China has produced the 572B, ceasing production in 2013.
The Shuguang tubes we see available on eBay are believed to be the returns
from RF PARTS and Ameritron that did not meet spec
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