Jump to content

longdrive03

Regulars
 View Profile  See their activity

  • Posts

    816

  • Joined

  • Last visited

 Content Type 

Posts posted by longdrive03

    T9A AUTOTRANSFORMER HOOKUP QUESTION.

    in Technical/Restorations

    Posted

    I've got several  of the T9A's andd am going to use them in a AB-2 Belle crossover.  They have 3 taps 0, 4, and 5.  I think the 0 is the connection for the negative  but need to know which is the positive lead connection coming and the tapped connection going to the midrange positive input.  Looks like T9A has -4db attenuation and will work well with a 13uf cap for 500hZ crossover with 5mh coil in parallel. Any help appreciated.    Thanks.

     

     

     

     

     

    Refurbished 1977 Heresys for sale

    in Garage Sale

    Posted

    Schu, 

     

    First I just realized I erred when I said these are 1982 Hereseys. They are 1977 based on the “R” in the serial numbers.  So they would be Heresy 1 per the info I’ve seen. I bought these from Rockhound and did the refurb.  Sorry for confusion on year. 

    Refurbished 1977 Heresys for sale

    in Garage Sale

    Posted

    Thanks TWK123!   Appreciate the kind words.   

     

    Man we were  just at CS in May.  Incredible weather.  Loved the scenery.  Loved the Broadmoor!!!  My wife and kids (and me) didn't want to leave!!! Drove up Pike's Peak and next day it snowed!!

     

    Sometimes I can't leave well enough alone!  I've got a friend that always hassles me why I put grill frames on.  Hint:  he is single with no kids, cats or dogs.  I know some people like to leave the grill off and listen so thought I would make them pretty.

     

    Correction on the woofer!!!  It they are  K-22-EF woofers

    Parts Express midrange horn buyouts?? Anyone used or tested them?

    in Technical/Restorations

    Posted

     So sorry to hear about DJK passing!  He was one smart cookie and I will miss him.

     

    I’m going to use the 7 inch tall horn to build a belle size top cabinet with removable front board and use this horn and a k77 Tweeter on the side mounted horizontally. If I ever run into some actual belle mid range horns I can remove the front panel and cut a standard size Belle horn and K77 cut out and install. I’ve got some bell bass cabinets that I’ve built and will stack the new cabinet on top

    Refurbished 1977 Heresys for sale

    in Garage Sale

    Posted · Edited by longdrive03
    TO CORRECT WRONG YEAR ON SPEAKERS

    NOTE:  ON JULY 10, 2018 I EDITED THE POST TO SHOW THESE ARE 1977 HERESYS AND NOT 1982 HERESYS.

     

    I posted about the refurbishing of these Heresies in technical modifications. I’ll put a link in tomorrow when I have my laptop.

     

    I stripped off the Duratex paint,  cut the front trim edge flush with the motor board,  veneered  the motor board, sides and top as well as the newly installed front trim on the inside and outside with rosewood veneer.

     

    I installed a front to back brace to deaden the back panel resonance  with two screws going into the brace through the back panel. Installed new sonicap capacitors and also a new electrolytic cap on the woofer circuit on the E crossovers.

     

    Also installed new 12 gauge wire to the input and speakers. Installed foam  self adhesive sealant tape on the back. Built a new slanted riser for both cabinets veneered with Rosewood.

     

    The cabinets are very solid now. I also shot new finish nails into the motor board through the sides top and bottom before veneering. I built new grill frames using the old frame  as a template out of 3/16” inch hardboard  and covered with new brown cane grill material. I also installed seven neo magnets under the veneer on the front of the speaker to match the seven magnets on the grill frame so there is no ugly Velcro attachments on the motor board.

     

    I purchased a better set of woofers  to replace the woofers in  the cabinets. One of the woofers  had large spot on woofer cone. I installed new diaphragms in both of the K77 square magnet tweeters. Mid range is the K 52H and woofers are the K 22 – E. All are in good working condition and sound great. I wrapped the veneer so it would be consecutive from one side tothe top and then the other side. I wiped down the rosewood with lacquer thinner to reduce the oil content in the veneer then applies two coats as a stain/sanding sealer and then applied six coats of wipe on poly then did final rubdown  with 0000 steel wool and Minwax finishing wax. The finish is very smooth. I Ialso installed new banana plug  terminals on the back.

     

    These are consecutive numbered speakers as shown in the photographs. I installed plastic sliders on the bottom of the slanted risers for ease of movement.

     

    I covered the woofer frames  with mortite string caulk to reduce vibration. These sound great and need a good home. Price is $725.   

     

    I’m  located in Little Rock. If you’re close by or passing through I’ll be glad to let you look and listen. 

     

    I cant post pics from my phone but will post tomorrow from work laptop. 

     

    Ken

     

     

     

     

     

    Parts Express midrange horn buyouts?? Anyone used or tested them?

    in Technical/Restorations

    Posted

    Karlson, the ebay horn  at the link in your post above  has these specs

     

    • Horn Dimension Front: 17.75"(450.84mm) x 9.93"(506.22mm)
    • Front to Rear : 7.75"(196.85mm)
    • Dispersion : 90° Horizontal X 40° Vertical  
    • Mounting Size Hole: 8" x 14.75"
    • Material: Hard Durable ABS Plastic 

     

    These are pretty close to the PE 299-2305 buyout horn dimensions (9.75" x 17.75" x 7") on the 2" throat horn.  Same 90 x 40 dispersion.  Don't know about the flare.  Someone smarter than me needs to chime in.  Maybe DJK or others????

     

     

×
×
  • Create New...