Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Parts Where to get, and how to make the best bits. PCB's, caps, transformers, etc.

Radio Shack 40-1030
Radio Shack 40-1030
Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 2nd September 2019, 07:38 PM   #1
billiam62 is offline billiam62
diyAudio Member
 
Join Date: Apr 2010
Default Radio Shack 40-1030

I found a pair of Minimus 7W speakers a while ago on craigslist. They had the tweeters I was expecting but had woofers marked as 40-1030. Were those ever put into the Minimus 7Ws? If not, are they a correct replacement? I plan on refinishing the enclosures and upgrading the crossover, but I was looking to see if the woofers will need to be addressed. Thanks
  Reply With Quote
Old 3rd September 2019, 02:18 PM   #2
indianajo is offline indianajo  United States
diyAudio Member
 
indianajo's Avatar
 
Join Date: Jan 2010
Location: Jeffersonville, Indiana USA
Radio Shack excelled at selling garbage. I bought a headphone once, the box showed 20-20000 hz response +- 3db. The brochure said the production tolerance was +-20db. So if it made any noise (not music) it was spec compliant. No wonder their speakers sounded so bad in the store. I wouldn't get too involved with finding exact replacement part for a Radio Shack anything.
Read multi-driver in the speaker forum. One designs a speaker to have proper flat response curve, which requires an anechoic chamber and a special microphone to measure. Other than that, one is just guessing.
Buy some old blown up classic speaker. Electrovoice, Peavey, JBL, QSC, Yamaha, pre 1980's Klipsch, Pre 90's Polk, pre 80's AR, KLH, dynaco. Those would be worth working on & measuring. I've looked, and peavey still sells drivers similar to what was in their 90's speakers. Or eminence drivers are well specified. Or look at Parts-express.com they have a collection of bargain and somewhat more up-market drivers, plus crossovers & hardware for speakers.
For general music use don't buy a guitar or bass or organ speaker. Those tend to top out at 7000 hz and the guitar/bass ones have subtle distortions admired by classic guitar players.
__________________
Dynakit ST70, ST120, PAS2,Hammond H182(2 ea),H112,A100,10-82TC,Peavey CS800S,1.3K, SP2-XT's, T-300 HF Proj's, Steinway console, Herald RA88a mixer, Wurlitzer 4500, 4300

Last edited by indianajo; 3rd September 2019 at 02:36 PM.
  Reply With Quote
Old 3rd September 2019, 02:35 PM   #3
Bill_P is offline Bill_P  United States
diyAudio Member
 
Join Date: Sep 2009
Location: New York, the vampire state
Despite a few opinions to the contrary, Minimus 7's are well respected, especially with crossover modifications.

Unfortunately the 7W's you found have had the woofers replaced with non-original drivers. The 40-1030 Came from the Optimus STS-100 speaker system and was used as a midrange driver. The 40-1030 was also sold individually for $19.99 and first appeared in the 2000 Radio Shack catalog on page 137. It was also found in the 2001 catalog on page 159 and the 2002 catalog on page 183. Radio Shack Catalogs - General Catalogs

See also the ebay auction Optimus Midrange Part # 40-1030. Tested. Parting Out Optimus STS-100 Speaker. | eBay for seller joeoldaudio parting out a STS-100.

The last 7W's were made in 1994. The first 40-1030 appeared in 2000. I would pass on the 7W's you found - not original.
  Reply With Quote
Old 3rd September 2019, 02:59 PM   #4
Galu is offline Galu  Scotland
diyAudio Member
 
Join Date: Apr 2018
According to the 1985 Radio Shack catalogue, the 4" woofer chassis which was contemporaneous with the Minimus-7W was the 40-1022.
  Reply With Quote
Old 3rd September 2019, 03:43 PM   #5
billiam62 is offline billiam62
diyAudio Member
 
Join Date: Apr 2010
Quote:
Originally Posted by Bill_P View Post
Despite a few opinions to the contrary, Minimus 7's are well respected, especially with crossover modifications.

Unfortunately the 7W's you found have had the woofers replaced with non-original drivers. The 40-1030 Came from the Optimus STS-100 speaker system and was used as a midrange driver. The 40-1030 was also sold individually for $19.99 and first appeared in the 2000 Radio Shack catalog on page 137. It was also found in the 2001 catalog on page 159 and the 2002 catalog on page 183. Radio Shack Catalogs - General Catalogs

See also the ebay auction Optimus Midrange Part # 40-1030. Tested. Parting Out Optimus STS-100 Speaker. | eBay for seller joeoldaudio parting out a STS-100.

The last 7W's were made in 1994. The first 40-1030 appeared in 2000. I would pass on the 7W's you found - not original.
Thanks. That helps. They looked too new to be original. I already have them along with some cast examples. I didn't pay too much. I will see if I can get something for the 40-1030s on Ebay and look for the right drivers. Just something I enjoy. Thanks again
  Reply With Quote
Old 3rd September 2019, 04:48 PM   #6
Bill_P is offline Bill_P  United States
diyAudio Member
 
Join Date: Sep 2009
Location: New York, the vampire state
To restore one of my Minimus 7's I bought a raw woofer on ebay. It didn't go well because the speaker was not packaged appropriately for shipping. The problem is the speaker surround extends beyond the metal frame and needs to be protected from external force. The speaker enclosure naturally does provide protection but a raw driver is exposed. Request special packaging if you have woofers shipped to you.
Attached Images
File Type: jpg Minimus-7 Woofer Side View.jpg (49.3 KB, 37 views)
  Reply With Quote
Old 3rd September 2019, 06:14 PM   #7
billiam62 is offline billiam62
diyAudio Member
 
Join Date: Apr 2010
Quote:
Originally Posted by Bill_P View Post
To restore one of my Minimus 7's I bought a raw woofer on ebay. It didn't go well because the speaker was not packaged appropriately for shipping. The problem is the speaker surround extends beyond the metal frame and needs to be protected from external force. The speaker enclosure naturally does provide protection but a raw driver is exposed. Request special packaging if you have woofers shipped to you.
Thank you for the heads up. I have a couple of the 7W cast models in my garage that I may end up stealing from. But we will see. I would like to keep them as complete as possible. Nice little speakers that work with a bluetooth amplifier. Finished a project for my daughter not too long ago. Pink paint was what she asked for. Sounds decent enough for her needs. I will definitely work on new crossovers for my next project.
  Reply With Quote

Reply


Radio Shack 40-1030Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
A Radio Shack Classic still around? Scioneer Full Range 3 22nd June 2016 09:43 PM
More radio shack dissapointment wicked1 Tubes / Valves 120 5th March 2014 01:41 AM
Radio Shack BrianDonegan Everything Else 0 23rd April 2007 05:27 PM
Radio Shack OPT! sorenj07 Parts 2 13th March 2007 02:30 AM
FS: Radio Shack RS 40-1197 Dick West Swap Meet 4 12th April 2005 05:24 PM


New To Site? Need Help?

All times are GMT. The time now is 12:37 PM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 14.29%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Copyright ©1999-2019 diyAudio
Wiki