On 10/21/2017 12:43 AM, Chuck Guzis via cctalk wrote:
No, it turns out the answer is to set the preamp gain at
spec. It appears to do nothing but create more problems if
turned up higher than that. It was worth a try. --Chuck
Well, then, now you have your answer! From working with
tapes and d
On 10/19/2017 05:00 PM, Jon Elson wrote:
> On 10/19/2017 06:44 PM, Chuck Guzis via cctalk wrote:
>> My question for those knowledgeable with this drive is what's the
>> downside of adjusting the gain to create an output of, say, 7V P-P?
>>
>>
> Well, you might have to turn it back down for newly r
On 10/19/2017 05:00 PM, Jon Elson wrote:
> Well, you might have to turn it back down for newly recorded tapes. But,
> if you are using it only for recovery of old data, maybe no downside at
> all.
>
> But, there are so many defects in old tapes. There's print-through,
> wrinkles from the tape pa
On 10/19/2017 06:44 PM, Chuck Guzis via cctalk wrote:
Here's an idle question with regard to the HP 7907 tape drive.
The service manual says to adjust read preamp output (using a
calibration tape) to 6.4V P-P.
Generally, this is working quite well, but there is an occasional tape
where I believ
Here's an idle question with regard to the HP 7907 tape drive.
The service manual says to adjust read preamp output (using a
calibration tape) to 6.4V P-P.
Generally, this is working quite well, but there is an occasional tape
where I believe the signal levels have "faded" a bit, leading to the
o
