Tektronix DC508 1GHz Frequency Counter Plug In for TM500 Frames For Sale

Tektronix DC508 1GHz Frequency Counter Plug In for TM500 Frames
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Tektronix DC508 1GHz Frequency Counter Plug In for TM500 Frames:
$295.00

Item Description: For sale today is a Tektronix DC508 1.0GHz frequency counter with Option 1, the oven oscillator. pictures are of the actual item. The TM501 frame, signal generator, and and cables are not included. Condition: This needed a new 3 digit display module and had a defective display drive transistor. Both have been replaced. The prescaler resistors had increased in value from 47 and 50 ohms to some over 120 ohms. They have been replaced with SMT equivalents. The oven oscillator was adjusted to match my GPS signal generator output after warm up. The plug in was tested for basic functionality with a 123.456789MHz signal (just for fun) on the direct input and 1GHz signal on the prescaler input. The DC508 was ON for about 15 minutes prior to the tests to warm up the oscillator oven. The signals were from a GPS locked generator. I also tested the multiplier with a 100Hz input, it seemed to work OK. Posted pictures of all of the tests. I would rate this plug in to be in good physical condition, about 8 on a scale of 10. There is plastic missing in the lower right corner of the plastic bezel and there is a repair to the plastic ion the back side of the panel in the vicinity of the serial number. See pictures for actual condition. The connectors and buttons and controls all work OK. All of the LED display segments work as shown in the pictures with me holding the reset button in. This is all that was tested, other functions and settings were not tested. This plug in is not calibrated and may not be able to pass calibration due to age. The plug in is being sold as is.Just a note, the LED displays in this unit are obsolete and are impossible to find these days so always check DC508s and DC502s for missing segments before buying. If an operation/service manual is desired, you can get one online at Artek Media for $5.00. This plug in is being sold as is as described.

Serial Number: B010538

PayPal Confirmed Address: PayPal address must be confirmed and must be the same as the shipping address.

Returns: All items are sold as-is unless otherwise stated. Returns are not accepted unless item is grossly misrepresented. Please notify me of any issue within 7 days of receipt of the item.

response: response is important to me, please email or contact me with any concerns, issues or problems before leaving response and give me the opportunity to work things out if needed. I always leave positive response after receiving response from the buyer, that way I know the buyer is happy and the transaction is complete.

Shipping : Shipping is to USA only.



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