Best Of
Re: Post a picture.....any picture...part deux...
For the fellow computer nerds among us.
I like that but Windows is missing thousands of billboards along the roadway and within the car.
BlueBirdMusic
2 ·
Re: Teac X-1000r R2R Adventures
The owner of this deck has been sitting on two pairs of Teac CA (Cobalt Amorphous) record/playback heads (found in the X-2000r) and asked for them to be installed instead of the Permalloy. They standout due to orange epoxy being used instead of black.
Teac said their CA, Cobalt Amorphous head, has twice as many segments as a regular Permalloy head. The advantages are significantly smaller eddy current losses making it easier on the recording/playback amplifier. They also claimed better operation in the HF range.
When swapping heads, head alignment needs to be checked and adjusted. Next up, the old clear leader trick, improved. I cut a length of clear leader tape and attached a short piece of rubber band to the loose ends. This keeps the tape tensioned and leaves my hands free to turn screws.
The tape was routed under the capstans in order to wrap the tape around the record heads for easier adjusting.
It's easy to set height, that is edge of tape position to head cores, but harder to ensure the head is square to the tape and head plate, especially with head shields. This is all I will show as my setup is very Rube Goldberg like. Basically, a square that has been checked with another square has been secured to a flat surface that had been checked with a straight edge.
The head plate is secured against the square, so the head plate is 90 degrees to the flat surface. A dial indicator is used to adjust head position. That is front and back of head are equal distance off the flat surface. It sure looked pretty good viewed from different angles. Any adjustment here means the clear leader tape must be installed and height checked again. The shields were added after this adjustment.
Getting closer to hope it still works...and calibration.
Teac said their CA, Cobalt Amorphous head, has twice as many segments as a regular Permalloy head. The advantages are significantly smaller eddy current losses making it easier on the recording/playback amplifier. They also claimed better operation in the HF range.
When swapping heads, head alignment needs to be checked and adjusted. Next up, the old clear leader trick, improved. I cut a length of clear leader tape and attached a short piece of rubber band to the loose ends. This keeps the tape tensioned and leaves my hands free to turn screws.
The tape was routed under the capstans in order to wrap the tape around the record heads for easier adjusting.
It's easy to set height, that is edge of tape position to head cores, but harder to ensure the head is square to the tape and head plate, especially with head shields. This is all I will show as my setup is very Rube Goldberg like. Basically, a square that has been checked with another square has been secured to a flat surface that had been checked with a straight edge.
The head plate is secured against the square, so the head plate is 90 degrees to the flat surface. A dial indicator is used to adjust head position. That is front and back of head are equal distance off the flat surface. It sure looked pretty good viewed from different angles. Any adjustment here means the clear leader tape must be installed and height checked again. The shields were added after this adjustment.
Getting closer to hope it still works...and calibration.
SCompRacer
4 ·
Re: Post a picture.....any picture...part deux...
For the fellow computer nerds among us.
billbillw
4 ·
Re: Post a picture.....any picture...part deux...
The poor old Nimitz was supposed to be retired already, but due to the shipping challenges around the Arabian peninsula and delays in getting the Ford Class sea/battle ready, it has been put off until at least 2027.
Interesting read about the JS Kaga. It went from being a destroyer with helicopters to a small carrier that can launch the F35B!
Interesting read about the JS Kaga. It went from being a destroyer with helicopters to a small carrier that can launch the F35B!
billbillw
3 ·
Re: Post a picture.....any picture...part deux...
Yesterday: In real head-turner, 3 aircraft carriers sail out of San Diego Bay in one day
The USS Nimitz, USS Carl Vinson and JS Kaga were on different missions during a period of change in the military.
BlueBirdMusic
5 ·
Re: NEW RECEIVER
Great!
I'm still digging my RZ50, watched DP3 last nigh, just amazing what they have done with these new AVR's. I'm still running it with all room correction off.
The RZ50 is an awesome AVR. I suggest using the DIRC or ACCU EQ. When done properly, it will help with room reflections, timing and EQ curves that need to be adjusted depending on your room.
At first it might not sound right as without running room EQ, your listening to reflections, most likely bass that is to heavy and certain frequency boosted or canceled.
mantis
1 ·
Re: NEW RECEIVER
Great!
I'm still digging my RZ50, watched DP3 last nigh, just amazing what they have done with these new AVR's. I'm still running it with all room correction off.
I'm still digging my RZ50, watched DP3 last nigh, just amazing what they have done with these new AVR's. I'm still running it with all room correction off.
mrloren
2 ·
Re: NEW RECEIVER
A decade ago it took some of the manufacturers a while to figure out the audio/video processing circuits needed proper heat management inside the metal box when they went to 4K switching capability. But I still have a couple of Pioneer Elite receivers from that era that never have failed.
Emlyn
3 ·
