"Classic" Transformers & Enclosures

A "Classic" tube audio amplifier (example) Using all Hammond transformers, chokes, chassis, ventilated cover, bottom plate and rubber feet.

Our "CLASSIC" line of transformers & enclosures. For all you tube lovers of the world!

Our Most Popular "Classic" Products
Tube Output - Audio Transformers:		Tube Driver & Matching Transformers:
Single Ended "Ultra-Linear" HI-FI (to 75 Watts)... Single Ended "Universal" replacement (3-25 watts)... Push-Pull "Ultra-Linear" HI-FI (to 280 Watts)... Push-Pull "Ultra-Linear" HI-FI (Easy Wire Sec.)... Push-Pull "Universal" replacement (3-15 watts).. Replacement outputs for Tube Guitar Amps (3.5-100 watts)...		Tube Driver... Classic receiver 600 Ohm speaker matching... Speaker Matching... Radiola audio replacement...
Power Supply Transformers:		Enclosures:
Filament (open style & enclosed)... High Voltage Power (with or without filament windings)... High Voltage Potted Power (with filament windings)... Chokes & Reactors (open or enclosed)... Line Isolation AC transformers (isolation, step up, step down & regulating)... Replacement power transformers & chokes for Tube Guitar Amps. ...		Aluminum & Steel chassis... Wood sided aluminum & steel chassis... Our famous diecast aluminum enclosures... Small enclosure accessories... Racks & Rack Cabinets... Rack accessories...
Custom Transformers:
Custom For special requirements. When a stock unit won't do. Competitive production volumes too. We are currently integrating the Peter W. Dahl series of custom transformers & chokes to our transformer offering. Take advantage of hundreds of pre-designed transformers!
Application section
Send in your ideas of where you used our products - we will be glad to post them !

Link Here

Related "Classic" web sites for tube & classic heads!

-- "CLASSIC" NEWS --

Information on Lloyd Swackhammer's book - Radios of Canada

• Send in your ideas of where you used our products - we will be glad to post them here - Application section
• Eleven (11) new high current - dual primary - stock transformers added to our line - perfect for high power - tube filaments (February 2014)
• We are now quoting & building transformers to Peter W. Dahl's original designs. (April 2013)
• Peter W. Dahl transformers to live on! A purchase agreement has been signed and executed with Hammond Manufacturing Company, Inc. of Cheektowaga, New York to acquire the Peter Dahl line of products from Harbach Electronics, LLC. Finalization of the acquisition and transfer of assets will take place over the next few weeks with the transfer to be completed by March 31, 2013. (February 2013)
• 240 VAC / 50 Hz. versions ("EX") of our most popular Fender replacement power transformers added (Listed January 2013)
• New high power (almost 1KVA) 379WX power transformer added (December 2011)
• Wood sided chassis added to line (aluminum & steel) (Listed May, 2010)
• Twelve NEW higher power plate/filament transformers added to line (Listed January 2010)
• UPGRADED tube guitar amplifier output transformers added to line (Listed October 2009)
• UPGRADED tube guitar amplifier power transformers added to line (Listed October 2009)
• Our NEW Transformer & Inductors catalog (5C-08) is now available (Listed July 2008)
• A NEW series of replacement - tube Guitar Amp. transformers (Listed July, 2007)
• Single - Ended tube output transformers - Two NEW impedances added & all models improved performance - "1627-1642" series - added (Listed Aug., 2005).
• 7 sizes of universal primary, economical, open frame, plate & filament transformers - "260" series - added (Listed Aug., 2005).
• 22 NEW sizes added to our "300" series of universal power transformers (Listed July, 2005).
• Single ended "universal" output transformer series our popular 125SE series has two NEW additions (20 & 25 watt),
  optimized for single ended tube output circuits (Listed March., 2004).
• Constant Voltage Isolation Transformers, worried about voltage regulation? Repair it at the source and regulate/clean/isolate your supply (line) voltage! (Listed March, 2002).
• Line Isolation & Autotransformers, safely run equipment almost anywhere in the world! Great for the bench & check out our slight step down units to keep the stress off those older 110VAC receivers (Listed March, 2002).
• RCA Radiola III-A replacement audio transformer (Listed March, 2002).
• Single ended "universal" output transformer series (3 - 15 watts). Our popular 125 series has a NEW addition, optimized for
  single ended tube output circuits - the 125 SE series (Listed Nov., 2001).
• 5 watt tube driver transformers, 124 series - we have already added 3 parts since their introduction in 2000 (Listed Late 2000)!
• High power, high impedance, single ended output transformer added to our line - our 75 watt, P/N 1642SE (Listed 2000).
• Our "300" series power transformer specs... Our "300" series universal primary - Plate/Filament power transformers.
  Operates anywhere in the world! (Listed 2000).
• Part Number 119DA our response to requests from the "Collins Collectors Association" (an audio matching, 600 ohm to 4/8 ohm, transformer) (Listed 2000).

-- OLD NEWS --
Why do we love "Classic" products? It's in our roots - check out our company history.

HL-1000A

HL-2000A

AT-1500

• In the early 1980's we also produced Hammond R.F. linear amplifiers for Amateur (Ham) Radio use. Naturally tube type, built for continuous duty, powered by Hammond "iron" & housed in Hammond enclosures. We stopped production over 30 years ago. Even now folks are still asking about them (many are still in active use today). Two versions of two different models were produced:
  • The HL-2000 (later became the HL-2000A) using two 3-500Z tubes.
  • The HL-1000 (later became the HL-1000A) using a single 3-500Z tube - designed to be a lighter & more economical version of the more powerful HL-2000A.
• Offered along with this series of R.F. amplifiers in the 1980's, were R.F. accessories:
  • High power antenna tuners - the AT-1500
  • 2,000 watt low pass R.F. filters HF-1000LP
• In the 1960's we sporadically offered the HL-500 (87K photo), HL-700 and HL-750 linear amplifiers too. They used quad 811-A output tubes. Not only using Hammond "iron", RF chokes and enclosures BUT also using our then available, air variable condensers (PDF - 239K). Very little data on these amplifier models has survived...
• Looking for specs. on one of our older transformers?

	Our oldest known catalog G-48 (PDF 5.1 MB) from 1935 (Thanks to Bruce MacMillan & SPARC for finding & scanning this)
	Or interested in a travel back in time, to perhaps the peak of the radio era? Download our 1950's Catalog #65, we even gave transformers their own names!!! Transformer Section (25 pages) of Catalog65.pdf (6.2 MB)

• In the late 1930's we designed audio amplifiers using our transformers & enclosures. Thanks to Bill Crowther (of Winfield, B.C.) for locating these schematics & sending them to us. Interesting to see a note on the 1247 & 1245 diagrams regarding 25 or 60 cycle power use!
  • 7 watt amplifier - PDF file - Diagram 1247 (74K )
  • 15 watt amplifier - PDF file - Diagram 1229B (73K)
  • 60 watt amplifier - PDF file - Diagram 1245 (92K)
• We also made audio amplifiers & battery eliminators (again combining our enclosure & transformer skills) in the 1920's! Check out a few pages from the fascinating Aikenhead's Radio Catalog (1929-1930) (PDF file 934K) - an early Toronto, Ontario distributor of our products.
  

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