Connect with us

Nady TD 1, guitar tube distortion effect pedal

Discussion in 'Electronic Repair' started by N_Cook, Mar 28, 2009.

Scroll to continue with content
  1. N_Cook

    N_Cook Guest

    Anyone else been here before ?
    End of line , being sold without the power adaptor, presumably ran out
    before the units sold out.
    Contains a valve so the wall-wart supply is 9-0-9 V ac and 3 wire for an
    internal step up transformer ( presumably , not looked inside yet), no great
    problem there to do that.
    But the connector on the unit is a 3 pin locking din, like CB mike
    connector, but the pin spacing is non standard, 5.5mm between pins rather
    than 5 mm.
    Looks as though I will have to quote silly money to mold up a compatable
    line socket as he wants compatibility with his mates unit. And I think he
    wanted another one made up for another mate of his. Normally, in such
    situations, I would change both parts of the connector to something standard
    or just wire in through a gland.
     
  2. hr(bob)

    hr(bob) Guest

    Norm:

    What is a "gland" called on the western side of the big pond?

    Bob Hofmann
     
  3. I would guess a grommet, but I think they (UK) have grommets over there too.


    --
    Made From Pears: Pretty good chance that the product is at least
    mostly pears.
    Made With Pears: Pretty good chance that pears will be detectable in
    the product.
    Contains Pears: One pear seed per multiple tons of product.

    (with apologies to Dorothy L. Sayers)
     
  4. N_Cook

    N_Cook Guest

    onhttp://home.graffiti.net/diverse:graffiti.net/

    Norm:

    What is a "gland" called on the western side of the big pond?

    Bob Hofmann

    __________


    More than a grommet, a way of anchoring the sleeving , by compression ring
    or joggled clamp. So the cable cannot twist and twist and ventually fracture
    inside the box. So what are those called in the US ?
    and I will add to my translator
    http://www.divdev.fsnet.co.uk/tool_terms.htm
     
  5. N_Cook

    N_Cook Guest

    Is this another valve con job? (dated 2004)
    Had to get inside to check the wiring as cold testing not consistent with a
    transformer and no confirmation anywhere other than anecdotal/verbally that
    the supply is 9-0-9 ac, centre ground.

    That feeds a bridge R and then 7806 and 7906, 4 4580D smd opamps and a
    12AX7.
    Where is the HT supply ? caps are 10V,16V or 50V, input socket contains 2
    crudely epoxied small unlabeleed black lumps with 6 pins
    one has pin-pin resistance readings of 13K,360R and 0.1R or less
    the other 18K,360,720, 0.1R or less
    So perhaps transformers there, but smps combined with input amp in a can? ?.
    A smd 8pin device marked AD 741 and OP 275G and a few TO92 transistors but
    nothing SMPS looking inside.

    Then the final test, the wiring to the valve. Whether plugs are in or out of
    the 1/4 inch sockets the anodes of the genuine looking , but no label valve,
    are connected to one end of the heater chain. No viewing hole to let the
    owner see the presence of a glowing valve for the psychological effect of
    the valve sound. This unit is new working order as the owner checked it with
    another owner's ps.

    Incidently note the various casing screw lengths, on disassembly as the long
    ones would touch the pcb if replaced wrongly
     
  6. I could tell you what they're called here if you could explain what a
    "joggled clamp" is. Never hoid of such a thing.

    Sure it's not what we call a "strain relief" fitting? Those are usually
    only used for power (flat) cords.


    --
    Made From Pears: Pretty good chance that the product is at least
    mostly pears.
    Made With Pears: Pretty good chance that pears will be detectable in
    the product.
    Contains Pears: One pear seed per multiple tons of product.

    (with apologies to Dorothy L. Sayers)
     
  7. That answers that question, but what is a "joggled clamp"?


    --
    Made From Pears: Pretty good chance that the product is at least
    mostly pears.
    Made With Pears: Pretty good chance that pears will be detectable in
    the product.
    Contains Pears: One pear seed per multiple tons of product.

    (with apologies to Dorothy L. Sayers)
     
  8. N_Cook

    N_Cook Guest


    The cable entry glands that come in two parts, linked together, that require
    a D shaped cutout through the chassis and joggle the cable where it passes
    through, so locking against rotation and being pulled out.
     
  9. Ross Herbert

    Ross Herbert Guest

    :N_Cook wrote:
    :> :>> On 3/30/2009 2:40 AM Ron spake thus:
    :>>
    :>>> David Nebenzahl wrote:
    :>>>> On 3/29/2009 12:34 AM N_Cook spake thus:
    :>>>>
    :>>>>>
    :> :>>>>>> What is a "gland" called on the western side of the big pond?
    :>>>>> More than a grommet, a way of anchoring the sleeving , by
    :>>>>> compression ring or joggled clamp. So the cable cannot twist and
    :>>>>> twist and ventually fracture inside the box. So what are those
    :>>>>> called in the US ? and I will add to my translator
    :>>>>> http://www.divdev.fsnet.co.uk/tool_terms.htm
    :>>>> I could tell you what they're called here if you could explain what a
    :>>>> "joggled clamp" is. Never hoid of such a thing.
    :>>>>
    :>>>> Sure it's not what we call a "strain relief" fitting? Those are usually
    :>>>> only used for power (flat) cords.
    :>>> A gland is the name for a close fitting surrounding a shaft, pipe or
    :>>> cable, designed to prevent the ingress of foreign matter - liquids,
    :>>> dust' ect, or leakage of lubricants etc.
    :>> That answers that question, but what is a "joggled clamp"?
    :>>
    :>>
    :>> --
    :>> Made From Pears: Pretty good chance that the product is at least
    :>> mostly pears.
    :>> Made With Pears: Pretty good chance that pears will be detectable in
    :>> the product.
    :>> Contains Pears: One pear seed per multiple tons of product.
    :>>
    :>> (with apologies to Dorothy L. Sayers)
    :>
    :>
    :> The cable entry glands that come in two parts, linked together, that require
    :> a D shaped cutout through the chassis and joggle the cable where it passes
    :> through, so locking against rotation and being pulled out.
    :>
    :
    :yes, it`s like a saddle clamp, which forces the cable into a U shaped
    :indentation, generally ensuring that one or both of the conductors fail
    :in a very short time - horrible design.


    If you mean one of these
    http://uk.rs-online.com/web/search/searchBrowseAction.html?method=getProduct&R=0543866
    then your comment about conductor failure surprises me. In the 30 years (approx)
    these have been around they have been used in countless appliance applications
    and I have never seen cord conductors fail at the strain relief point. Of course
    it would depend to some extent on how much flexing takes place at that point.
    But they were never intended to be used where constant flexing at the cable
    entry point occurs. Where flexing at the entry point is unavoidable, bend
    reduction techniques must be employed in addition to cable securing.
     
  10. Guest

    Wow....thats a little tiny piece of crap IMO. Found a gut shot of it
    and there's nothing in the box hardly. Its a starved plate design. It
    may have a simple voltage multiplier to get a plate supply of
    30-40vdc....kinda like the "tube driver" branded boxes from the early
    90s.

    Where are these being sold at and for how much? The box may be good
    for something if its a closeout deal....
     
  11. N_Cook

    N_Cook Guest

    no larger voltages on the valve than the -6 volt and +6 volt to the heaters
    and unit worked perfectly normally when tested .
     
  12. Guest

    So what voltage was on the plates then? I doubt a 12a*7 will do much
    of anything at a 12v plate supply.
     
  13. N_Cook

    N_Cook Guest

    The penny has dropped
     
  14. Sounds like the tube is a phoney-baloney device, as Norm suspects: just
    there for show.

    "Tube sound" my ass. (In this case, anyhow.)


    --
    Made From Pears: Pretty good chance that the product is at least
    mostly pears.
    Made With Pears: Pretty good chance that pears will be detectable in
    the product.
    Contains Pears: One pear seed per multiple tons of product.

    (with apologies to Dorothy L. Sayers)
     
  15. ????????


    --
    Made From Pears: Pretty good chance that the product is at least
    mostly pears.
    Made With Pears: Pretty good chance that pears will be detectable in
    the product.
    Contains Pears: One pear seed per multiple tons of product.

    (with apologies to Dorothy L. Sayers)
     
Ask a Question
Want to reply to this thread or ask your own question?
You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.
Electronics Point Logo
Continue to site
Quote of the day

-