This transformer information appears in print form in our book. Plus it answered some questions i had in my mind maybe it will answer some of yours, too. The input and output impedance is 10 kohms and the dc resistance of the primary 389 ohms and the dc. Principles of power tube amp books by london powerpower press. Home power supplies transformers adapters hammond transformers. This transformer information appears in print form in our book, the ultimate tone vol.
Transformer hammond, tube output, pushpull, 280w 1. We are very busy doing all sorts of interesting graphics work plus adding some. Click to expand click to contract browse all products. Deepdrawn steel case with tin plated finish, with two convenient 632 mounting studs with hardware. Hammond 1650f ultralinear audio output transformer for tube. Hammond audio transformers signal transformers are available at mouser electronics. For more sizes and voltages open bracket mount type see pt154pt156x.
Im using them on a tube amp i designed for hifi, to replace some 3kohm impedance transformers output tubes are 6l6 in. Most transformers are indent items and are available to order on short lead times. Competitive prices from the leading hammond audio transformers distributor. Buy hammond 125ese audio transformer by materrotm at amazon uk. Hammond 1650n ultralinear audio output transformer for tube. Hammond transformers for tube audio amplifiers the specs for each hammond output transformer are listed along with our own supplemental data. Today, hammond manufacturing is a global company with customers worldwide for their transformers and enclosures. Ej664 or ej cross reference competitor part number. Information on lloyd swackhammers book radios of canada. Hammond amp filter chokes, output transformers, project. Whether you are into the clean, free spirited single ended tube output or high efficiency, high power, pushpull audio, we have the output transformer for you. Hammond transformers for tube audio amplifiers tube amp.
If anyone else can provide additional informs please do thanks again. Appendix c provides information on the newly expanded line of hammond transformers for tube use. Tube amp kits, tube amp books, tube guitar amps by kevin oconnor. Hammond audio transformers signal transformers mouser. New hammond 125ese single ended audio transformer 15w 80ma for tube amp forvacuum tube amplifiers. Units are vacuum impregnated with polyurethane varnish for quiet and long life operation. We have been producing tube output transformers continuously for over 75 years, constantly improving and tweaking their performance. Compact mini hum eliminator box 2 channel passive ground loop isolator, noise filter, ac buzz destroyer, hum killer w 14 trs phone, xlr inputoutput, uses 1. Hammond transformers are available at mouser electronics. Hammond 1650n ultralinear audio output transformer for tube pushpull hi fi circuits 60w.
Electrolytics can have quite low self resonant frequency, in the audio. Proper output transformer design is crucial to the success of an audiophile quality amplifier. Transformer hammond, line output transformers image 1. Specifying these parameters is pretty straight forward in most cases. The new transformers were mounted under the chassis of the radio and cant be seen from the top. Hammond chassis boxes by dimension antique electronic supply. Transformer output, 8 w, single ended amplified parts. Transformer audio interstage, 10 ma antique electronic. But there is a general purpose multiimpedance transformer. Further, lees book has been included to the vias library. Unfollow hammond audio transformer to stop getting updates on your ebay feed. Bill whitlock audio transformers page 2 handbook for sound engineers, 3rd edition figure 1 magnetic field surrounding conductor figure 4 inductive coupling figure 3 coil concentrates flux figure 2 ac magnetic field 1 audio transformer basics since the birth of audio electronics, the audio transformer has played an important role.
You can view the full range of hammond enclosures on their site hammond transformers here. Further, lees book has been included to the vias library, providing better accessibility offering an index, a table of contents, and cross links. Hammond manufacturing company limited, based in guelph, ontario, canada, is a global company that divides its business between two groups. Developed in response to requests from the collins collectors associationthis is a matching audio transformer for older equipment with 600 ohm audio. Perhaps if hammond built a transformer that was dedicated to 6bq5, it might be a fairer test, i dunno. Hammond chassis applications london power tube amp kits. Transformers 6 audio transformers 3 pcb transformers 3 recently searched. Transformer hammond, audio broadcast quality, 800a series. The sub stantial reserve of power handling capability which is built into every dynaco superfidelity output trans former permits full undislorled power transmission at frequency extremes. Bill whitlock audio transformers page 2 handbook for sound engineers, 3rd edition figure 1 magnetic field surrounding conductor figure 4 inductive coupling figure 3 coil concentrates flux figure 2 ac magnetic field 1 audio transformer basics since the birth of audio electronics, the audio transformer.
Universal 100, 110, 120, 200, 220,230, 240 vac 5060 hz. I have brought two diy monoblocks that have iec, rca and speakers ios, mains trans 250v ct and 6. Hammond power, nmk075kbc, distribution transformer, 75 kva. These leslie amp transformers are oem dropin replacements for leslie models 122147etc. Units are vacuum impregnated with polyurethane varnish for quiet and.
Transformer hammond, 146 series, audio chassis mount. Most better grade transformers can deliver a reasonable amount of power in the middle of the audio band. Transformer hammond, audio broadcast quality, 800a. We have standardized the listings to make transformer selection and amp design application simpler. Transformer hammond, audio broadcast quality, 850a series. General amp use hammond puts a century of experience into manufacturing high quality magnetics for tube applications like hifi audio. The hammond electrical enclosure group manufactures a wide variety of enclosures, essentially cabinets, to house electrical components. Power suppliestransformersadapters hammond transformers. Hammond overview classic universal tube output 3 25 watts single ended. Evatco has a wide range of hammond power transformers for amplifier, as hammond s preferred supplier of the classic range we can supply you with a drop in replacement for your guitar amp. Get the best deals on audio transformer when you shop the largest online. Hammond 1650f ultralinear audio output transformer for tube pushpull hifi circuits 25w hammond output transformers are well known to design engineers and audio hobbiest alike. To put the rig through the paces i figured a transformer shootout would be just the ticket. Its my guess that hammond is building a transformer for a variety of output tubes, whereas dynaco built transformers strictly for 6bq5.
General amp use hammond puts a century of experience into manufacturing high quality magnetics for tube applications like hifi audio and guitar amplifiers. Transformer hammond, guitar amplifier, replacement for fender, 120 v. Hammond manufactures direct replacement transformers for popular tube amps from fender, marshall, vox, ampeg, orange, and yorkville traynor. The specs for each hammond output transformer are listed along with our own supplemental data. I bought two pt156 transformers from antique electronic supply. Exact replacements for audio output transformers in old tube radios are often hard to find. One of the best books i have ever read on valve amplifiers.
Hammond manufacturing was founded in 1917 in guelph, ontario, canada primarily making radios and battery eliminators. Apr 30, 2010 the answer is possibly tradition and conformity and that very few electronic designers, especially audio valve amps, directly participate in the design and construction of transformers. Discussion in transformers general discussion started by scaleface, jul 26, 2009. Some of the problem is that there is some competition on the market from the audiophile world. Transformers audio universal singleended tube output. The primary on the new transformers are the red and blue wires which are connected to the plate of each of the audio. The 270 series power transformers use the convenient 4 hole above chassis x type bell end mounts. Hammond 125d output transformer diy audio projects. Audio technica cp8201 microphone mic impedance matching transformer xlr to trs please read this is a item was used item works great about us welcome to gadgets4u2buy where. Hammond, audio interstage, 5 watt, primary impedance. Designed for general purpose or replacement use not hifi, in single ended, tube output circuits. Today, hammond manufacturing is a global company with customers worldwide for their transformers. Appendix b lists new ultrawidebandwidth audio output transformers from plitron manufacturing, as well as their matching power transformers. Hammond transformers for tube audio amplifiers tube amp kits.
Hammond power, nmk075kbc, general pupose distribution transformer energy efficient, 75kva, 3ph, 480 delta pri208y120 sec, nema 3r enclosure, copper windings. Transformer hammond, line output transformers amplified parts. Hammond puts a century of experience into manufacturing high quality magnetics for tube applications like hifi audio and guitar amplifiers. Get the best deals on audio transformers when you shop the largest online selection at. The right pic is a 27kg 60lb bass output tranny, fully balanced split bobbin. Now this is not an ultimate test of these transformers rather it is a test of these transformers.
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