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Topic: 25L6

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	Silicon Chip Online - Vintage Radio
		For example, a 12SK7 was used in lieu of a 6SK7, while the audio output valve was a 50L6 instead of a 25L6.
		Additionally, the bias on the 25L6 (50L6 in 110V set) was only -1.5V, as supplied by a dry cell.
		Radio Corporation's Astor receivers also used two 25L6 valves (similar to the 35L6) operating in push-pull in the audio output stages of their 32V HT receivers.
	www.siliconchip.com.au /cms/A_30638/article.html (2218 words)

	Replacement tube for IBM 026 Printing Card Punch (Site not responding. Last check: 2007-11-06)
		So I'm off to look for a 25L6 tube for my IBM 026.
		John Lawson says that the tube is a 25L6 because all the other tubes in the rack are 25L6 types and he believes they are hammer drivers.
		Lawson, since he did used to service these, but I just want to make sure this is in fact the right tube type that goes into the socket that is currently empty.
	www.classiccmp.org /pipermail/cctalk/2002-June/001598.html (219 words)

	Radiophile.com - Silvertone 6197
		Tube complement: 6K7 RF, 6F5 detector, 25L6 audio output, 25Z6 rectifier.
		The tuning knob, of translucent plastic (probably tenite) is lit from behind by the pilot light.
		I carefully cut the cardboard to size, and cut and punched out all the holes.
	www.radiophile.com /silv6197.htm (274 words)

	Minerva Tropic Master W-117 WW2 Morale Receiver (Site not responding. Last check: 2007-11-06)
		The schematic shows a pair of 25L6, but the set has a pair of 50L6 in it.
		The set with the pair of 25L6 tunes from 550-1600 Kcs and from 5.5-19 Mcs.
		It uses eight tubes; 25Z6 rectifier, (2) 25L6 or 50L6 audio output, (2) 6SK7, 6SA7 and 6SQ7.
	www.w9wze.org /MTM/df.php?dn=Introduction.wp (910 words)

	Emerson BM-206 radio (Site not responding. Last check: 2007-11-06)
		Although this radio could have been marketed as a five tube radio it uses a very cheap and simple circuit.
		The basic radio is a three tube 'straight' or TRF set using a 6D6 RF amplifier, 6C6 detector, and 25L6 audio amplifier.
		Presumably the radio had to be produced and marketed at minimum cost, and using a TRF circuit saved the cost of IF transformers and a converter tube.
	www.peacockcollectibles.com /radios2/radios3/emerson1.htm (128 words)

	rec.antiques.radio+phono Frequently Asked Questions part 3 (Site not responding. Last check: 2007-11-06)
		The 25A6 is an octal version of the 43; the 25L6 is a 25 volt heater beam power tube identical, except for heater, to the 35L6 and 50L6.
		Radios with voltage doubler power supplies are AC-only, as a voltage doubler requires alternating current to "pump" the doubler circuit.
		Push-pull audio output, using two 25L6 tubes and a 6J5 as a phase inverter.
	www.xs4all.nl /~tgale/oradio/faq3.html (4236 words)

	Dan's page of tubes and classic electronics
		These sets usually used 6V tubes as commonly seen on transformer sets, except for the output and rectifier tubes, which were usually a 25L6 and 25W5 or similar.
		This of course gave you a series string that didn't add up to nearly 120V, and a large resistor was used to drop the voltage.
		What Westinghouse did on a number of sets was to add a second 25L6 in series making the radio a push-pull output instead of a single tube seen in the common AA5-type sets.
	thepayne.net /~dano/hifi.html (1061 words)

	Usenet Archive (Site not responding. Last check: 2007-11-06)
		Triode connected the rating for the 6W6 is given as 225 volts max.
		This is substantially higher than the voltage the 6W6 screen is rated for in the pentode connection, so I would assume that the 25L6 is also not limited by the screen voltage rating when operated as a triode, maybe it can run in triode mode at nearly the full 200 volt rating of the plate.
		Since the 6W6 and 25L6 are virtually the same tube, and I have seen tubes with 12 volt heaters dual labeled as 12W6GT/12L6GT, I wonder why the max.
	www.allusenet.org /pages/22710.html (6442 words)

	25L6 for hi-fi? - Tubes
		All the folks that got one were very happy and used them for many years.
		The 6W6GT is the same as the 25L6 family.
		6W6 and 25L6 are virtually the same tube, and I have seen tubes with 12
	www.dvd-software.info /forums/post-87033.html (2228 words)

	Part 2 – Technical Tips
		The first number in the tube name is the voltage required necessary to heat the heater (or filament).
		For example substitute a 35Z5 for 25Z6, a 50L6 for 25L6, a 12Q7 for 6Q7, and so on.
		It is important to make sure that all the substitute tubes have the same heater current rating.
	www.nwvrs.org /part3.html (2679 words)

	Radiold - Minerva Tropic Master (Site not responding. Last check: 2007-11-06)
		It uses a pair of 50L6 tubes in a push-pull configuration.
		This configuration establishes that it is one of the early military sets as the civilian model used a pair of 25L6 tubes.
		The civilian sets were produced in very limited numbers, making them as collectable as its military counterpart.
	www.radiold.com /radios/rad40/minerva_tropic_master.htm (192 words)

	automated vaccum (Site not responding. Last check: 2007-11-06)
		Includes automated vaccum and detailed information about 25l6 vacuum tube characteristics.
		News and information about automated vaccum can be hard to find, especially if you need specific advice not only about site straight away before they decide to finish their greatest sale ever which will end very soon, but also with 25l6 vacuum tube characteristics and vaccum forming.
		If you are looking to get this out then I highly recommend you check out this enables you to find a product or service that delivers the kinds of choices you need to make educated decisions about automated vaccum.
	1-free-dyson.com /dyson/automated-vaccum.html (144 words)

	Replacement tube for IBM 026 Printing Card Punch (Site not responding. Last check: 2007-11-06)
		It sat in a garage for several years, and gathered much dust.
		John Lawson says that > >the tube is a 25L6 because all the other tubes in the rack are 25L6 types > >and he believes they are hammer drivers.
		Can someone verify that > >the 25L6 is indeed the correct tube for the empty socket?
	www.classiccmp.org /pipermail/cctalk/2002-June/001604.html (503 words)

	R1155B
		I have recently acquired a R1155B (direction finding components removed) housed in its proper wooden transit case.
		The set had been modified to include a 25L6 output stage by wiring the remaining valve heaters in series and providing an HT supply (between HT+ and chassis!) from a HW rectified supply apparently energised from 110 volts AC.
		V6 had been rplaced with a VR55 double diode triode the heater of which had been shunted with two 3 ohm resistors in series.
	www.richardsradios.co.uk /r1155b.html (896 words)

	Victor Animatophone Guestbook (Site not responding. Last check: 2007-11-06)
		I curently am tring to "make one out of 2" from a 55 and a 55A but an looking for schematics for the amp.
		This model must have been the home use one as it uses two 25L6, and two 25Z6 a 6SJ7 and a 6SL7.
		One of th eamps will work with a microphone (sort-of) the other is DEAD.
	www.feistworks.com /ben/animatophone/guestbook (3939 words)

	25L6 for hi-fi? - Tubes
		Posted: Wed Jan 19, 2005 8:34 am Post subject: 25L6 for hi-fi?
		Posted: Thu Jan 20, 2005 4:08 pm Post subject: Re: 25L6 for hi-fi?
		Posted: Thu Jan 20, 2005 4:52 pm Post subject: Re: 25L6 for hi-fi?
	www.dvd-software.info /forums/post-87915.html (2228 words)

	Vacuum tube test adaptor (Site not responding. Last check: 2007-11-06)
		Homepage for SND Tube Sales tubes, vacuum tubes, electron tubes Our Test Lab Visit Our Ebay or make a simple adaptor, you can use type 1U6 (still rare, but
		25l6 Vacuum Tube Characteristics - Amazing Vacuum Guide
		quick connect vacuum adaptor (20) Latest News For 25l6 Vacuum Tube Characteristics
	www.theofficialscoop59.info /vacuum-tube-test-adaptor.html (504 words)

	MMD Archives: Tubes for Sound Scriber
		Actually, 35Z5 (not 25Z4, I hope) and 35L6 or 25L6 or 50L6, as well as the 12SC7 and other 12-volt tubes, are all _easier_ to find than their 6-volt equivalents.
		Most radios made during the late 1930s and very early 40s were "AC/DC" and used series-strung tubes, so the high- voltage types are literally sold by the boxful at radio swap meets.
		Contact our webmaster about technical problems you encounter using this web site.
	mmd.foxtail.com /Archives/Digests/199905/1999.05.31.12.html (304 words)

	Discover Circuits - Vacuum Tube Circuits
		Thursday, September 15, 2005 08:06 AM Links to Other Circuits (off site):
		25L6 Amp: design without a power transformer (added 5/02)
		Get more Power With a Boosted triode #1: 04/03/03 EDN-Design Ideas / (added 02/05) Even though 6L6 beam-power tubes have been around for 66 years, they are still quite popular for use in electric-guitar amplifiers, and its cousin, the 6CA7 (EL34) power pentode, is a favorite among audiophiles.
	www.discovercircuits.com /V/vacuum.htm (257 words)

	The educational encyclopedia, tube amplifiers (Site not responding. Last check: 2007-11-06)
		Tubes: Datasheets, General, Tube audio amplifiers, Tube guitar amplifiers, Old radio
		25L6 amp the Western electric 1140A amplifier is a push pull parallel 25L6GT design with out a power transformer
		Amplifiers single ended, push pull and output transformer less amplifiers : schematics with tubes ; RIAA curve, pre amplifiers, tone controle
	users.telenet.be /educypedia/electronics/tubesamplifiers.htm (497 words)

	Emerson Radios (Site not responding. Last check: 2007-11-06)
		Click on your browser's back button to return to this page
		Tubes are 6A7, 6D6, 6Q7, 25L6, and 25Z5.
		I bought it for $5.00, and had to remake the front and both sides of the cabinet.
	members.aol.com /boblaroc/mysite/emerson.htm (65 words)

	Epiphone Schematics (Site not responding. Last check: 2007-11-06)
		Note: Tube List: 14F7, 76, 25L6, 25L6, 25L6, 25L6, 25Z5, 25Z5, 25Z5 ($15)
		Note: Tube List: 6SJ7, 25L6, 25L6, 25Z5, 25Z5 ($15)
		Note: We have all versions, send tube list with order.
	www.musicparts.com /products.asp?Company=Epiphone (338 words)

	Audio Radio Items (Site not responding. Last check: 2007-11-06)
		CAR MP3 PLAYER IPOD IPAQ PDA AUDIO 2 RADIO TRANSMITTER
		4) 25L6 1) 35L6 1) 50L6 Audio Radio vacuum tubes #529
		Tube 2ea matched 6V6 G audio radio amplifier ham
	www.okashopping.com /audio-radio.html (375 words)

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