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Post by mitchfit on Sept 25, 2014 19:12:36 GMT
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Post by mitchfit on Sept 25, 2014 18:41:20 GMT
couldn't listen to video, but if you like Taj, try to pick up a used CD of his, "Recycling The Blues & Other Related Stuff", circa 1972. must admit to not liking the live side of the album that much, but the side with the Pointer Sisters singing on it sounds great. en.wikipedia.org/wiki/Recycling_The_Blues_%26_Other_Related_Stuffwarning---this is a very short album, was even short by 33.3 rpm vinyl standards back in the day. mitchfit
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Post by mitchfit on Sept 11, 2014 20:15:39 GMT
Brad, ..."I would guess the Aura pedal was used as the preamp that Fishman recommends."... looked up info on that pedal to find what may/could have been used to alter the original signal...ouch, dollar intensive product there. perhaps all the presets would be worth the price tag, would have to first hand demo for any realistic observations on that. but, for those who seek pristine unaltered signal, the ART tube MP is less than $50 currently. up from about $30 coupl'a years ago so this preamp is winning over many customers. i have read the issued 12AX7 [ECC83 in UK] are less than ideal, but haven't had issues with the ones i bought. did go out and score some short plate mullard pullouts for them on the cheap, but have felt no need to install them yet. the 12AX7 ~is~ a mild compressor on its own, so not loosing that function, and gaining tube "warmth", for lack of a better/precise description. also a great mic pre, and has 48 volt phantom power for condenser mics available. www.sweetwater.com/store/detail/TubeMPmitchfit
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Post by mitchfit on Sept 3, 2014 20:27:12 GMT
sonically, there should be no difference between cast [if without voids] or welded [beveled 100%, also void free]
other than the time to remove metal not needed cutting it out from a billet is the surest method.
if you plan to go with the welded fabrication, stay with the same alloy for all pieces/parts and keep records of same for the welder to choose correct the filler materials. alloy will be a 4 digit number.
TIG is the easiest welding process to get good quality welds with due to requiring less heat introduced into the metal.
for your project 6xxx alloys will likely yield the best results with 4043 0r 4047 filler.
no idea at all as to which alloy will be best for sonic traits.
mitchfit
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Post by mitchfit on Sept 1, 2014 14:16:35 GMT
pre-apology---no input or worthwhile contribution as to your problem. more curiosity, how'd you get a measurement three digits right of the decimal point, feeler gauge?
that's all i could come up with as calipers would be too easy to apply too much pressure with. [throwing off the measurement]
nice guitar!!!
mitchfit
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Post by mitchfit on Aug 30, 2014 2:45:59 GMT
not sure if those members in the UK or EU have even heard about this company before, but they are quickly building a reputation here in the US for repro retro amps that are as close to OEM specs/builds as can be bought. first became aware of them due to my valco fetishism and ADD [amp distraction disorder] affliction. have been reading progressively more numerous positive reports about their products at musical gear websites since that time. as an obvious byproduct of the increasing popularity, the amp costs have been rising from nearly unknown status to a midpoint boutique builder level currently.
read his "about us" and "artists using" links for more background info that will explain product selection and rising costs in more detail.
DISCLAIMER--while i may have seen some of his "light show" efforts at the fillmore west or winterland, ~no~ i have not met the man before.
[no cronyism present here.]
the point of all the above being they are going to start building classic national amps in the near future. if like their other offerings, these will not be merely an external resemblance veneer as found in ~many~ other better known company's reissue products.
won't go there with any specific references on the pretense of being a polite individual. you will know who i'm talking about anyway if still reading this far.
i have had to seek out US boutique type amp mfgrs in the past who work off-menu to get classic circuit amps built due to spiraling costs of originals, and the prerequisite additional costs of recap, potentiometer cleaning and ground cord being minimal.
for national devotees, it may be worth looking into soon-to-be offerings from this builder:
vintage47amps.com/Home/
mitchfit
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Post by mitchfit on Aug 1, 2014 22:21:12 GMT
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Post by mitchfit on Jul 26, 2014 13:12:46 GMT
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Post by mitchfit on Jul 25, 2014 20:03:39 GMT
billyclaire said: ..."I don't think copyright is any issue now"... +1 in the link that slide496 posted it was stated that all of the late Mr. Rider's published material is in the public domain now. [thanks for the additional background info you found, as well] MM has notified Mark Makin** of what Billy unearthed, and hopefully he will be able to incorporate these schematics into any upcoming/sequel publications along the lines of his first documentary-ish Dopyera Brothers based book, "Palm Trees, Senoritas...and Rocket Ships". restating sentiments of my above postings, well done Billy and Harriet. mitchfit ** pls see: www.markmakin.co.uk/book.html
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Post by mitchfit on Jul 21, 2014 18:25:35 GMT
sweet find!!!
thanks for sharing, mitchfit
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Post by mitchfit on Jul 15, 2014 20:10:03 GMT
Ken, couldn't possibly get free to go with you, BUT... no trip to Tennessee would be complete without going to Gruhn's new store. www.gruhn.com/have a good time, mitchfit
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Post by mitchfit on Jul 11, 2014 23:42:32 GMT
^^^
also, if you live in 50 cycle country, avoid diming the amp volume too much as a marginal output tranny will suffer from extensive use being a 60 cycle design.
mitchfit
EDIT
RETRACTION. JUST READ THE AMP SPEC PLATE AND 50 CYCLE POWER IS WITHIN DESIGN SPECS.
OR--large variations in armature RPM's from rural power sources back then?
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Post by mitchfit on Jul 11, 2014 23:32:16 GMT
bclaire, would ~guess~ the below amp jpg's and yours to be very close to the same D.O.B. also guessing yours is the earlier version due to it not having an included fuse. seems these were mfgd before national/dobro created the valco amp enterprise as the mfgr plate states it is "Webster Electric Company" built in Racine, WI. best bet for schematic search would be "National-Dobro Amp 6107" as per jpg listings. the relocation of amp controls/inputs/fuse LIKELY non-issue with component values, tubes/valves and circuit layout unchanged. purely speculation, but the below list from: home.provide.net/~cfh/dobro.htmlhas a very good chance of applying to amp serial #'s also. you'll need to verify same... Dobro Serial Numbers 1929 to 1937 Dobro Serial numbers by M.Cass. Note the 1929 to 1937 serial number info is not very accurate. For example I own a Dobro metal body M-62 with the serial number 1832. According to the list below it should be 1930. But no metal body Dobro existed before 1935. So you can see the serial number info below is not 100% reliable and the information below applies mostly to wooden body resonator Dobro guitars. Pleaes keep this in mind. Also I don't have any 1937 to 1942 Dobro serial number info. Serial numbers for metal body Dobros very scarce. Serial numbers are stamped into the top of the peghead. No factory serial number records are available. The numbers below are a general guide, and are not reliable for dating the instrument solely on the serial number. Number range Year 800 - 1400 1929 1400 - 2000 1930 2000 - 2600 1931 2600 - 3200 1932 3200 - 3900 1933 4000s 1933 (mostly Regal made) 5000 - 5600 1933 (California made) 5700 - 7600 1934-1936 (California made) 8000 - 9900 1936 & 1937 L9000s 1937 (Regal made) A prefix 1936 B prefix or suffix 1931-1932 (most Cyclops wood models) M prefix 1935-1937 No serial number: on 1930s Dobros, this happens a lot, and for no explainable reason. below brought to you courtesy of Terry Dobbs AKA Mr. Valco. [valcoamp.com] one of THE sources for jurrasic period national/dobro/valco electronics. www.valcoamp.com/photo/nationaldobro-amp-6107-1?context=latestwww.valcoamp.com/photo/nationaldobro-amp-6107-2?context=latestwww.valcoamp.com/photo/nationaldobro-amp-6107-3?context=latestwww.valcoamp.com/photo/nationaldobro-amp-6107-4?context=latestwww.valcoamp.com/photo/nationaldobro-amp-6107-5?context=latestwww.valcoamp.com/photo/nationaldobro-amp-6107-6?context=latestwww.valcoamp.com/photo/nationaldobro-amp-6107-7?context=latestthese and differing [same period] reso-cover plate design speaker grill amps turn up on the 'bay from time to time. just keep searching for similar amps that ~do~ sell, and keep records of relative condition compared to your amp, and price. the end results will need to be averaged over the period it takes to collect a meaningful amount of data base. hope this helps, mitchfit PS...overall--current {US of A} pricing is down from, say 3-4 yrs back. but starting to pick back up again.
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Post by mitchfit on Jul 6, 2014 22:59:15 GMT
deuce,
RE:
..."I'm on the side of the great players who don't get heard enough."..
did a youtube video search of, John Gorka and Leo Kottke-- "Furniture"
same from Gorka's album "Out of the Valley".
no luck, only a cover which didn't credit Gorka or Kottke except for writing/playing the original song.
song could be named 'the depressions of a touring musician'.
should you ever stumble on the disc, the interweaving of Leo Kottke and John Gorka playing acoustic finger style together in this darkish minor key out pouring is highly recommended in my play list.
mitchfit
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Post by mitchfit on Jul 6, 2014 22:34:14 GMT
to call my tastes in music "eclectic" would in fact, be generous.
can recall having much harsher terms leveled at the often off beat directions my favorite playlists of bygone periods have gone.
was a diehard Pink Floyd fan from the first time i was awakened at about 1:00 in the AM when radio station KSJO played "Interstellar Overdrive" off their '67 debut album, Piper at the Gates of Dawn".
saw their Winterland* show from "The Dark Side of the Moon" tour in San-Fran, done to acknowledge their fan base in that area/era from the earliest experimental period of their offerings. same, an abstract list of music that went from the likes of, "Seamus", "San Tropez", "Mudmen" [which was eventually grafted onto], "Fearless", "Atom Heart Mother", "Grantchester Meadows" into deepest darkest psycho-delia as per the "Ummagumma" album.
got every vinyl they released up to "The Wall", when the band turned abruptly into songs that didn't move me much. with the exception of "Comfortably Numb". right when they found a sound that got more radio air play.
listened to the "Fugs" extensively until Frank Zappa picked up the ball and ran with it, and i became a "FZ&Mothers" fan.
i have ventured into Andre Segovia, Sons of the Pioneers, Hank (Sr) Williams, The Dillards, Zephyr [before Tommy Bolin went on to The James Gang, and Deep Purple], Leo Kottke, Django Reinhardt, John Gorka, Shawn Mullins, Dire Straits/Mark Knophler, Willie Nelson, too many blues artists to list in a fair manner, etc, etc....could go on and on 'till it bored you to tears.
lately, have been on a Billie Holiday, Cab Calloway and Betty Boop kick. [you might be surprised at the music played in the Fleischer Brother's cartoons bearing her name...]
don't care whatcha call it, if i like it, i'll buy it.
didn't/can't listen to Yoko in O.P. sound card issues. doubt i would like it, as her voice gets an "armor piercing treble" rating in my books. couldn't say it pulls 30+ inches of mercury, however. i'd have to listen to it first to make that call.
from out where the busses don't run... mitchfit
*winterland ballroom--Bill Graham's "other" venue
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