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the amplifier, the other to a tape recorder. The latter is not affected by any controls other than the selector and equalization switches. Output as well as input connections are made by means of screw terminals. The 96 -10 amplifier is rated with a greater degree of conservatism than any we've worked with; most manufacturers would have called it a 13-water. At full rated output we measured roughly the same IM distortion as at half -power. Both figures were low. Waveform was clean and the sound, as with the preamplifier, excellent. Our only complaint concerns- againconnections! To get into this amplifier you have to wire up an Amphenol connector (the connector is supplied, but not the cable). Furthermore, you have to find an AC power Webster's 97 -ro amplifier: very good also. plug, connect a wire across its terminals, and plug it into a receptacle on the chassis to complete the power circuit. That receptacle is for a remote on -off switch; we believe that it would have better been omitted. It is probably obvious that we are enthusiastic about both Webster units. We think that with a few minor changes, making them more convenient to work with and dressing up the preamplifier's appearance a bit, they would be highly competitive with the best on the market. In quality, performance, and control flexibility they deserve to be best- sellers, and it will be regrettable if they do not become so. - R. A. MANUFACTURER'S COMMENT, A shorted plug for the amplifier's A(' switch terminals will be furnished with all future production. CBC Voltage Regulators SPECIFICATIONS (furnished by manufacturer); Regomatic automatic voltage regulators produce constant output AC voltage with varying power - line input voltages. Capacity: model 200, loads from 130 to 200 volt -amperes; model 300, 180 to 300 volt -amperes. Regulation: output voltage is constant at 115 volts f 3 % with line voltages from 95 to 130. Prices: model 200, $29.95 list; model 300, $34.50 list. Manufacturer: CBC Electronics <strong>Com</strong>pany, Inc.. 2601 North Howard St., Philadelphia 33, Pa. If you live in suburban or rural surroundings-or even in many cities- your power -line voltage may vary ove: a surprisingly wide range during the day. We have found that ours may be anything from tog to I IS volts. Television sets generally do not take kindly to such wide variations; they react by burning out tubes or making narrow, poor- quality pictures. These regulators were designed to keep the voltage supply constant for TV sets. You plug the regulator into the wall outlet and the set into the outlet on the regulator; turning on the set activates the regulator, which cuts down the wide swings to harmless size. Well, high fidelity equipment is affected by incorrect line voltages too. Low voltages may cause speed changes and overheating in turntable motors, degraded tuner performance, and reduced power output as well as increased distortion in amplifiers. The CBC regulators work just as well with hi -fi systems as they do with TV sets, which is very well indeed. There are two models available, and you'll have to use the correct size or sizes to obtain proper results. Model 200 should be used for loads totaling 130 to 200 watts; model 30o for loads from iSo to 300 watts. More than one item of equipment can be plugged into a regulator, of course, so long as the total load on each regulator falls within its rated range. Most complete systems can be handled by a single regulator. Power required by tuners, amplifiers, and the like is usually indicated somewhere on the equipment or in literature that accompanied it; if not, that information can be obtained from the manufacturer. Cost of the regulators is nominal, and there should be very little maintenance required. -R. A. MANUFACTURER'S COMMENT: We have no corrections to make to the article and the only addition we ran think of is that the unit would have application even in localities where power regulation is good hut where appliances in the home are on an over -loaded circuit. This is especially true o. appliances that have an automatic "on" and "off" action like air conditioners and refrigerators Wilcox -Gay 4F10 Recorder SPECIFICATIONS (furnished by manufacturer): substantially the same as for the 4A10 recorder, discussed in Tested in the Home for September 1954. except as noted in section below. Manufacturer: Wilcox -Gay Corporation, Charlotte, Mich. The model 4F to, latest tape recorder from Wilcox -Gay, is basically much like the model 4A which we reported on more fully in the September '34 issue. For those who do not recall, we may say here that this is a "package" type portable recorder, having a built -in low -power amplifier and speaker. Performance at the very modest price of the 4A o, although subjectively good, simply could not be expected to measure up to other components in better hi -fi systems. The 4Fro is better for use with high fidelity systems than the A model in several important respects, however. First, there is a push -pull amplifier output; this has little apparent effect on the overall frequency response (determined by the heads, head alignment, and the record and playback preamplifiers), but it does reduce playback distortion substantially when the power amplifier is used. Better yet, the TV -phono input jack is connected to the top of the playback volume control when the machine is in the PLAY position -so it serves as a constant -level output before the power amplifier section, and is perfectly suitable for feeding a hi -fi system on playback. The jack is connected just after the low -noise 12ÁY7 playback preamp tube; you'll have to use the volume control on your hi -fi control unit, and will probably get better results with some bass boost too. It will be remembered that the 4Aro had an external speaker jack which, when used, disconnected the speaker in the recorder. The same arrangement is made for one external speaker jack in the 4Fro; there are two extra speaker jacks, however, that do not disconnect the built -in speaker. You can use the internal speaker alone, then, or with one or two external speakers, or you can have one, two, or three external speakers going without the internal speaker. There's a resemble record and playback time indicator on the 4Fro, with index Continued on page 74 Right: Wilcox -Gay model 4F to recorder is better than 4Aro. Below: CBC voltage regulator helps to maintain performance. 72 HIGH FIDELITY MAGAZINE
A NEW MAGAZINE BY THE PUBLISHERS OF High fldelitl] Here at last is the perfect complement to High Fidelity ... a new monthly magazine written for those who want more technical and do- it- yourself material about hi fi, for those who want basic, practical and reliable information on sound recording and reproduction. Here is the magazine which will tell you - in the first issue - how to place and orient your speaker system for best results ... how to have FM in your automobile ... the characteristics and prices of all popular microphones ... how to build a compact quality amplifier for your TV set . . . how to dress up your equipment with decals ... how to build an especially fine three -speaker system, complete with detailed woodworking plans. Every issue will include the following regular departments: Audionews The Grounded Ear How They Did It Tips for the Woodcrafter Tape News and Reviews The Sound Board Sound Servicing Basic Electronics Hi -Fi Demonstration and Test Records The first issue (November) will be on sale October 25th ... but you can get your first copy early by taking advantage of - A SPECIAL OFFER TO CHARTER SUBSCRIBERS: The regular subscription rates will be $3.50 for one year, $6.50 for two, and $9.00 for three. If you get your subscription order in now, you will pay only $3.00 for a full one year subscription AND your copy of the big first issue ( November) will be mailed to you immediately after October loth. It's certain to be a sell -out, so make sure of getting your copy. Enter a subscription today! AUDIOCRAFT Magazine, 4500 Publishing House, Great Barrington, Mass. Please enroll me as a Charter Subscriber to AUDIOCRAFT at the special rate of $3.00 for one year. I enclose cash, check, or money order. Name (Please print) Street 8 N C ty Zone Stata
Page 1 and 2:
THE MAGAZINE FOR MUSIC LISTENERS
Page 3 and 4:
You're looking at excitement in you
Page 5 and 6:
MAGAZINE FOR MUSIC LISTENERS This I
Page 7 and 8:
THE 310 FM TUNER ...seems as close
Page 9 and 10:
K/4 is 7e4 Why 1114111Ø9h QUALITY
Page 11 and 12:
NOTED WITH INTEREST Continued from
Page 13 and 14:
QUALITY SPEAKS.. t TE LE FU NK Mode
Page 15 and 16:
Maj. Stanford Roberts, o- 1647908,
Page 17 and 18:
Here's the turntable professionals
Page 19 and 20:
is scaled for smaller rooms and lim
Page 21 and 22:
Full electronic remote controlled c
Page 23 and 24: Incomparable... Since 1935 the Garr
Page 25 and 26: One of a series on what makes one m
Page 27 and 28: LETTERS Continued from page 22 gran
Page 29 and 30: AS THE EDITORS SEE IT WHEN HIGH FID
Page 31 and 32: this: music has outgrown its old co
Page 33 and 34: Report from Britain Yorkshiremau in
Page 35 and 36: those cosmological systems, but the
Page 37 and 38: iAAM.i.N by IRVING M. FRIED .AA w 1
Page 39 and 40: No one's going to emancipate ME by
Page 41 and 42: plete and slavish reliance upon you
Page 43 and 44: music malzers by ROLAND GELATI THIS
Page 45 and 46: RECORDS Records in I Reviewed by PA
Page 47 and 48: RECORDS nection, it should be noted
Page 49 and 50: kL( ()kl), The Brailowsky -Munch co
Page 51 and 52: RH OR judge from his Violin Concert
Page 53 and 54: RC( OROS the surface and does not s
Page 55 and 56: RECORDS in connection with a Boston
Page 57 and 58: l building your record library numb
Page 59 and 60: RECORDS Continued from page 54 Paul
Page 61 and 62: RECORDS the Vienna Woods; Waltz fro
Page 63 and 64: Encore For a magnificent performanc
Page 65 and 66: RECORDS Symphony Orchestra; Nationa
Page 67 and 68: RE( Oi(U.', Eisslinger; Ferdinand F
Page 69 and 70: RECORDS dealers who still tolerate
Page 71 and 72: RECORDS Orchestra and Chorus of the
Page 73: These reports may not be quoted or
Page 77 and 78: $5450 k HARVEY the House of Audio T
Page 79 and 80: Even the walls have ears... for Bog
Page 81 and 82: the "missing link" in your sound sy
Page 83 and 84: I I I I I A SPECIAL SERVICE FOR HIG
Page 85 and 86: ANCIENT CHINA Continued from page 3
Page 87 and 88: The sensitive fingers of Gennaro Ta
Page 89 and 90: invisible hands guide your HI -FI A
Page 91 and 92: just doesn't have the sock it once
Page 93 and 94: TAPE RECORDER tirospeed, dualtrack
Page 95 and 96: Check these D & R features: Outside
Page 97 and 98: There are apt examples in each cate
Page 99 and 100: i e llll. WHY NOT TRADE IN YOUR PRE
Page 101 and 102: NOW there are EK-O-KUT Jr. 2 -Speed
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