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In Reply to: RE: Finally Going Somewhere - Just Got My Estimate For My A77 From AB Tech. posted by Marantzguy on June 07, 2007 at 11:07:27
Sorry, dopey Get Smart reference.. Richard, as per Jack at AB Tech. my deck is actually a MkII with MkIV cosmetics on the front.
So your brakes suggestion should be helpful down the road.. I will email you off board soon to discuss how easily the brake pads can be removed and re-installed. I can buy a crappy toaster for $15 if i want to get the Holly Hobby brake pad cakes going.
Should (fingers crossed) be good-to-go for awhile when i get the unit it back form AB Tech. He also determined that ALL of the trim pots needed replacing.. The brakes were not running up to spec, so you're 2 for 2 my man. I'll let you know how it goes when i get the deck in hands. Already planning my first few RTR playlists ;-)
Any recent gear scores at that magical spot near you recently? Still can't belive you snagged a 400CX2 for chump change in great shape.
Be good & enjoy the weather -- Marc
Follow Ups:
So, Marc!
Does your Mark II in a "Mark IV" disguise, also have the moving roller bearing installed on the circular flanged (5/8" diameter?) FEED side tape guide, positioned slightly ahead of the erase head on your deck? (Not the 1/4" post-type with the little hex nut and dollop of red sealant on the top!)
A long time ago, they installed this feature after manufacturing the Mark I and I know for a fact that it came standard on my Mark III.
Not sure if it did on the Mark II.
Without it, frequency response above 10 K is not as linear.
I believe that this innovation functioned as a sort of "flutter filter" in essence.
See if your guide has a moving bearing surface between the flange pieces. The other upgrade was the inclusion of a damped hydraulic swinging arm to the left of the erase assembly. Again, I seem to recall that on Mark I decks, this was a sort of immovable post.
ReVox used to offer an upgrade piece at one time, but you needed to cut a pathway through the top plate to accommodate it.
If yours is stationary and identical to the one to the right of the play head assembly (you might see a flat wear spot on the right-hand one), then you need to get the proper bearing part from ReVox or whomever and install one, if it is even available.
Installation of the "flutter filter" bearing is a very simple task, indeed and will make a big difference in performance on your machine. If you need a damped arm installed, that is a lot more difficult.
Richard Links
Berkeley, CA 94703
Hi, Marc!
Be sure that you wear the official "Busy Baker" cooking gloves when inserting or retrieving your ReVox brake drums from that oven!
You must remove the top plate of your machine and then remove three philips flat head screws on the top of each of the two "spindle turntables". Next, I believe that there is a securing screw to release the little brake drum from its spindle below. Get on the gloves and clean it with isopropyl alcohol, let dry and bake for about 15 minutes at perhaps 180 degrees F. Let cool and serve!
I never had to replace the fabric on the brake drums on my ReVoxes (Mark III and Mark IV), just had to intermittently clean them.
Forgot to also mention that it is necessary to thoroughly clean the inside surface of the stainless steel brake band attached to the break clutch/solenoid. Xylene is good for that one, or either isopropyl, even denatured alcohol. Use isopropyl ONLY on the fabric, however, NOT denatured or even Xylene, if you have it.
Anyway!
The only other cool deal I got recently was when I acquired a Magnum Dynalab FT-11 in a local thrift shop. I still have not removed or opened up the sticking meters to see what the problem actually is.
They wanted $25 each for the replacements at the factory and claimed or implied improper storage of the unit. BIG-TIME BALDERDASH!
I never heard such absolute nonsense before. First of all, even though I am obviously NOT an original owner, and secondly, there is no visible sign that this unit was stored improperly or subjected to anything weird. But honestly, I have never seen meters in a more modern tuner do this, aside from some in three of my Yamaha CT-7000's or perhaps one a long time ago in a Fisher unit I owned. The Yamaha meters were sticking because some of the original orange-red paint had flaked off and was binding between them and the back side of the front cover lens piece. I removed them and cleaned them all, then repainted them with very beautiful, almost fluorescent enamel paint!
El Perfect-O!
Oh, forgot to mention that I picked up a neat old pair of Jensen miniature bookshelf speakers the other day which are called X-10s. I believe they need to be opened up and the level controls cleaned or replaced.
They are attractive little beauties, probably from the mid sixties, I think.
That is about "it" from here, however!
Oh, forgot to also mention that I picked up a sealed package in a local Goodwill Store here in Oakland today which is something made by Delta Technical Coatings and it is designed to coat glass surfaces with frosted white. The product is called "Air-Dry PermEnamel" and it is described as a "Glass Etching Paint Kit".
This would be potentiall super-duper for recreating the original frosted type 47 incandescent miniature bayonnet lamps which go in some of the classic Fisher receivers and tuners!
I'll have to try using it!
Nice to hear from you!
Richard Links
Berkeley, CA
I'll email you and send a few .jpegs of the tape path to determine exactly what i've got. At this point, i'd take Jack's word for it that it's a Mark II with IV cosemetics in the front.
Bums me out a bit cause i really liked the idea of the Mark IV.. At this point i just want a friggin' deck to play with.. Soon enough.. Should be here next week.
Cheers, Marc
p.s. if you told me that you just found a MArantz 9 in the trash i was gonna fly out and rob your house ;-)
Best i've found around here were some AR18s and a Pioneer receiver.. then again, i don't look hard and don't work the right places. Wife has also decreed.. "no more stereo stuff, okay?"
Hiya, Marc!
I never do this seriously, you know. It may sound as if that is true, but not the case in fact.
I just have a nice leisurely stroll through the local flea markets and interesting thrifts and seem to have some good luck at times.
Oh, that rumor of finding the fabled Marantz 9's in the garbage can!
That's certainly part of the lore going around--an urban legend.
I saw one at a Ham Radio Swap Meet twenty years ago and the guy selling it (missing its meter) wanted $1K for it then, if that tells you something.
Who knows what might happen in the future, though?
I will try to assist you with regard to your ongoing adventure with the ReVox A-77, however. I still own the Mark III and Mark IV, both of which are low-speed 1/4-track machines.
Richard Links
Berkeley, CA
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