few day's work ; reason for operation was - broken ends , due to too much manipulation ( they aren't exactly made flexible .... while still fragile )
intention was to dismantle them , without ruining end stickers .......... ya can call me enthusiast
however , thin foils are better ........ to my ears
btw - main stickers ( at fork ends ) are having arrows , as that cables are "directioned"
I couldn't see any fact for that , in their construction
Fender Stratocaster tweaks , for hum reducing
- 0,3mm Cu foil , cut to strips and fields , glued with neoprene glue to back of mask , entire body cavity
- all Cu planes strategically connected with soldering and grounded to CT Ground - back of volume pot
- entire wiring changed to screened two wire cable , where screen is connected as shield strictly - on upstream signal side
- pot shafts lightly oiled
Woland's Kidoe will enjoy , I'm sure ..............
- ignore predominant red color on pics - it's from red velvet and my red plastic terrace roof
K3809 as main driver , K3833(K3836) as bass helper
K3809 are mine , while K3833(K3836) (stars of previous blog entries ) are prepared for SuperFi's Westminster project
just having fun with some old OB "wood" , gift from Chakija ( he's not feeling young enough to continue playing with them ....... )
to be continued ...... these days I hope to have some time to mount crude xover , and put them in living room
disclaimer - I'm really not expecting real bass ....... that's max width I can squeeze in living room , where spks must be situated
addendum - there is bass , at least in my smallish living room ; sound is remarkable , even with crude and quick xover , without any efforts put in measurements and polishing of same ; OB is far from optimal in almost every area , but it is so fun .....
remove compression driver , sand horn throat, degrease it , cover cone with paper inlets , spray-paint da throat, wait , Dammar everything ( as Gusztav made the button ) , put compression driver back
that's it - now K3833 is same as K3836 , excluding two funny golden rings ( to be precise - K3833 having gray basket and two golden rings , while K3836 having black basket and no silly golden rings )...... which will be invisible in WM , anyway .
...... A day later - measured Fs for both bass and compression drivers - 27 & 28 Hz , 1065 & 1075 Hz
I'm lazy to comment each picture ; cleaned , horn throat sanded , degreased , painted ;
spider area on basket cleaned from glue residue
prior to re-gluing it , VC is alligned with shims made of redundant photo ( didn't had usually used plastic foils near by)
spare mesh dust cap placed just for fun ...... it will not be used
I intend to redo other driver's horn throat in black , to make them same-looking
so - pretty much same work as....or even less than complete recone ...... but without 150E spent unnecessary , for new cone
Pair of non-matched Tanns - one 3833 (mint) and one 3836 ( supposedly needing recone ) , tnx to enormous and kind help of Ninja - obtained from outer space for my kiddoe - SuperFi .
As confirmed on net , difference between 3833 and 3836 is just here and there in color of some details ( golden ring around surround on one of them , while on other one, that ring is black) .
After some examination , measurements of all coils Rdc , I decided to make most direct and most benign steps , to decide is it necessary to buy new cone (150E franco BG) , or something else can be done .
So - all was needed is to soak spider circumference with acetone , pill it up , then unscrew 4 imbus bolts - to remove magnet assembly from basket ;
Culprit was in several steel pieces in gap , resulting in slight scratching of VC in gap ; luckily - there is no damage done to VC itself .
So - SuperFi is one lucky guy - price for that pair , shipping included , was pretty decent .
Beer for Ninja will be pleasure , not expense
Gap cleaning - easiest with sticky paper tape ; put it inside , circle , pull up ; use new piece of tape for each pass .
Then blowing it with compressed air , and again sticky tape .........
Enjoy in pictures ....... decent and knowledgeable engineering .......
........ and yes - there are Cu shorting ring tricks in both bass and comp. drivers ; and - yes , there is ferrofluid in comp. driver gap ...
One of these days I'll make re-assembly .....
those were days .......
Hans Dietze's ( Harry F. Olson's colleague) speech , taken from http://oswaldsmillaudio.com/underground/2006.html
aiff file converted to mp3 , download it and listen
fun and informative
luckily , those old guys didn't had all the fun , something is left for us
some info about H.F. Olson : http://en.wikipedia.org/wiki/Harry_F._Olson
Herr H. DIetze :
I'm lazy , so there are excerpts from my correspondence on Tannoy Yahoo group; all quotes - Mighty ZM
I'm putting this here as future reference for some other desperate Tanner ; I must admit ( or I'm just boasting ) - I'm always having serius backup for all things speakers - from Aleksandar RAAL ....... even if I'm always stubborn and I'm bugging him only post hoc ..... to be sure that I didn't blew something
of course - "Danish guy " wasn't prepared to share his recipe ; I don't blame him
that's why I'm sharing mine
then one guy is saying that Mouse Glue is forbidden in some EU countries ; my reply :
then guy asked where to search for surround impregnation goop ;
my reply :
then guy asked for difference sound-wise , pre and post procedure ; my reply :
I hope you enjoyed little story
In case that I remember to get cam to my workshop tomorrow , I'll make few pics and put it here , along with few pics of same drivers prior to fun procedure
edit : did I told ya that each cone got 2 layers of Dammar ?
all pics are after treatment , except last 3 ones - sent to me from seller , so prior to procedure ...... months ago
if you're puzzled - here is a link for SigJenny sig gene proggie : http://www.natch.co.uk/downloads/SigJenny/SigJenny.html