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In an effort to reduce spam and the spread of viruses, we are now providing this form for you to contact a person that has placed an ad on QTH.COM. After submitting this form, an e-mail will be generated and sent to BOTH you and the person that placed the ad. The e-mail will contain a copy of the ad, plus your e-mail information and your comments.
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| Ad Number: | 1755988 |
| Date Placed: | 01/16/26 |
| Name: | Stephen Wilmet |
| Phone Number: | E-MAIL ONLY |
| Callsign: | W6SDW |
| Category: | TUBES |
| Heading: | Eimac 7580W / 4CX250R |
| Ad Message: | Offering this from recent estate tube lot - cosmetics indicate either NOS or very, very low hours. ( Taken from Eimac Spec Sheet ): The 4CX250R/7580W is designed specifically for use in Class AB1 linear amplifiers where shock and/or vibration preclude the use of non-ruggedized tube types. The 4CX250R/7580W will replace the 4CX250B in equipments where the range of bias adjustment will tolerate this higher purveyance tube and where tuning range can compensate for the small differences in input and output capacitances. The 4CX250R/7580W will deliver more output in most linear amplifiers which presently employ the 4CX250B. . My TV-3B/U tube tester doesn’t cover this one, so it’s sold As-Is / No Return. - Additional Pics on Request - . Yours for: $ 50.00 + $10.00 Ship (CONUS) from 92117 - 6x6x6 box - 1-2 lbs. PayPal / USPS MO preferred - Check Accepted, but no ship until clears. |
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