Mostec Posted June 17, 2019 Author Share Posted June 17, 2019 ASZ and RB. Quote Link to comment Share on other sites More sharing options...
HDBRbuilder Posted June 17, 2019 Share Posted June 17, 2019 13 hours ago, Mostec said: ASZ and RB. "A" means that I built that one..."RB" means that Ronnie Barham built the other one....I was probably taking a day of vacation time on the day Ronnie built that one. 1 Quote Link to comment Share on other sites More sharing options...
HeadGeek Posted January 27, 2020 Share Posted January 27, 2020 RE: Builder initials I took a look at mine and there are only two letters O and D. That's a nice piece of history to know Quote Link to comment Share on other sites More sharing options...
HDBRbuilder Posted January 27, 2020 Share Posted January 27, 2020 1 hour ago, HeadGeek said: RE: Builder initials I took a look at mine and there are only two letters O and D. That's a nice piece of history to know "OD" is Ola Mae Davis....she sanded your speaker cabs. I actually had Ola Mae sand one of my "flame twins" HDBL's when I built them....the other one was sanded by Frances...they were best friends and the best sanders in the sanding room...so each one of them got to sand one of my pair. Builder initials and sander initials were stamped into the rear edge of the side panel within an inch or so of the top of that panel. The panel this was done on was, as you face the rear of the speaker, the side panel to your left. Because the sanders, especially on the birch plywood versions of the speakers, had to ensure that the rear edges of those panels were smooth without any tiny voids showing...they slathered the rear edges all around with a thinned down woof filler...using a putty knife. Once that dried and set up, the sanded the rear edges of the cabinets. So, in doing this, the stamped-in builder initial(s) often got filled with that putty, and were sometimes even sanded off, especially if they had not been stamped-in deep enough! So, it is sometimes difficulty to find the builder initials because they tend to be filled with putty and/or not very prominent....as compared to the sander initials. Everything else that was stamped into the speaker rear edges, was done in final assembly: "USA" the serial number, and such. When the move to MDF panels came along, the stamping of the rear edges ended, due to the stamping causing swelling of the MDF substrate on the rear edges. Quote Link to comment Share on other sites More sharing options...
OO1 Posted January 28, 2020 Share Posted January 28, 2020 - Quote Link to comment Share on other sites More sharing options...
OO1 Posted January 28, 2020 Share Posted January 28, 2020 - Quote Link to comment Share on other sites More sharing options...
Philcwood Posted February 16, 2022 Share Posted February 16, 2022 This thread is old but I just acquired a pair Cornwalls with U in the serial number. 25U174 and 176. Initials in both are JC. Quote Link to comment Share on other sites More sharing options...
Moderators Travis In Austin Posted February 16, 2022 Moderators Share Posted February 16, 2022 12 minutes ago, Philcwood said: This thread is old but I just acquired a pair Cornwalls with U in the serial number. 25U174 and 176. Initials in both are JC. Welcome to the Forum! Quote Link to comment Share on other sites More sharing options...
Moderators Travis In Austin Posted February 16, 2022 Moderators Share Posted February 16, 2022 19 minutes ago, Philcwood said: This thread is old but I just acquired a pair Cornwalls with U in the serial number. 25U174 and 176. Initials in both are JC. U = 1980 Quote Link to comment Share on other sites More sharing options...
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