Re: H-H echo unit

["roel" <q-mailing-list@xs4all.nl>]

hi gareth, thanks for your answer
the h-h unit the latter one, the one with the moving head.

in the meantine i've spliced a new tape loop. the one which was on the unit
had a tick in it because of improper slicing., this is much better, also
sending signal in on lower levels results in more transparent delays.
next week i'll be cleaning up the unit, its way dirty.
also i notice a hum, about 100hz, which gets on the tape when feedback 
level
set to max. should i do some tricks to reduce this hum, or is hum normal 
for
tape echo's?

best, roel





----
Gareth wrote:
----
Wow, this takes me back!
As I remember there were 2 types. one with multiple heads, rather like a
Wem/Watkins copy cat, ad the other had one playback head on a mechanical
slider. I owned the former but wanted the latter. With the moving head one,
you could play and speed up/slow down the echo - great fun..
Anyway, the reason I had one was that there was quite a long loop of tape 
in
it as compared to the affore mentioned copy cat which had a loop about a
foot long. This meant that if you covered up the erase head with a bit of
cardboard you could achieve sound on sound long loop effects.
I remember my tape chewing up on the H/H unit and making a new loop by
splicing some 1/4 inch tape together. This worked but the sound was
different. The problem is that different analogue tapes have different bias
characteristics. Without knowing the specs of the original tape it would be
hard to match up your new tape. You'll end up with foggy or bright echoes -
but this might be good too!
So maybe you should experiment with different types of 1/4 inch tape. And
remember to clean and de-gauss the heads. Little bits of oxide will get
trapped in the heads and this will cause dropouts.

Have fun!

Gareth

----- Original Message -----
From: roel
To: Loopers-Delight@loopers-delight.com
Sent: Saturday, August 19, 2006 12:26 AM
Subject: H-H echo unit


hi anyone out here, i'm new to this list... :)

i've never had the pleasure to own a tape machine or tape echo myself,
but finally this evening i've brought in a second hand H-H echo unit!

. i guess it needs a lot of service, since it drops out audio at some
moments.
also i know the sound gets most dirty immediately after the first repeat.
though i knew these units do not produce sparkling and clear sounds... the
dropouts is what makes me wondering.

is there a tutorial on repairing/optimizing/service-ing a tape echo?

best, roel




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