Sunday, October 26, 2008

AN: Some photographies

From time to time I enjoy taking shots of different things with my camera, and of course, this includes all related things with the reel to reel world.

Here are some that I took a few days ago:

Blue Open Reel

Fluorescent Blue Meters

The Ghost of the Pioneer RT-909

Dancing Open Reel Tape

VID: Grundig TS-1000

Here is another video of the Grundig TS-1000 available in high quality playing back "Galactica OST" at 19 cms / 7.5 ips. The tape is a AGFA 468 and the reels are metal Scotch painted in blue. They look really cool.

This unit is modified, you can read more about it clicking here.

VID: Tandberg TD 20A

Here is another video available in high quality (originally shot in 720P) showing the Tandberg TD 20A playing back "Badly Drawn Boy" at 19 cms / 7.5 ips, this time with ReVox black metal NAB hub adapters.

Saturday, October 18, 2008

DES: Akai R-7M 7" metal reel

Akai is probably the brand who made more different designs for their 7" metal reels. This one described here is the design with blue AKAI lettering.

Akai R-7M reel.

It has three holes in-line with no slot. The reel is silver with the AKAI lettering in blue. The design is identical on both sides, no differences. It has three screws and three "blind slots".

The reel is very light with made by thin aluminium, but is consistent. The distance between the both flanges is a few just, however is rare that the tape touches any of them.

The original box.

A pair of AKAI reels in their boxes.

The reels in an Akai deck, the GX-77

Saturday, October 4, 2008

DES / VID: Tandberg TD 20A

This was the top of the line reel to reel deck made by Tandberg and can handle up to 10.5" reels . It was sold in two versions: 4 tracks and 2 tracks.

The 4 tracks version came with the standard domestic speeds: 9.5 cms / 3.75 ips and 19 cms / 7.5 ips, while the 2 tracks version came with the professional speeds: 19 cms / 7.5 ips and 38 cms / 15 ips.

Instead of the typical 3 motor design, this deck has 4 motors: one per each reel, one for the capstan and the last one for pinch roller engage. I think this deck was the only one made with this feature instead of the most typical design by solenoid.

But there are more odd things. For example, this deck doesn't have a PAUSE button. It's rare, but I think the explanation is the system used to engage the pinch roller.

Other odd is that isn't neccesary to press the record and play buttons at the same time, it's only needed to press the record button and the deck goes into the recording mode if at least one of the record switches are selected. When a record switch is on, the "stand by" led lights.

All transport functions are led lighted, even the "stop" and all leds are red.

There's one feature that it's curious: the "free" mode. When "stop" and "wind" buttons are pressed at the same time, the led with the "free" function lights. In that mode the brakes are released and both reels can be manipulated by hand without any friction.

If the "edit / cue" switch is on, the sound can be heared while the reels are manipulated by hand. To end the free mode, just press "stop" and the deck will tight the tape.

Bias adjustment can be done individually per each channel with two pots that are in the front face of the deck and there are individual pots for the input signals per channel (line 1 and line 2 / mic), mic attenuator and output signal.

And here is the Tandberg TD 20A in action:

But, how is the 4th motor? how does it work exactly?. Look: