More than l i k e l y y o u a l r e a d y h a v e a T e c a m t h e r m o s t a t i c w a t e r b a t h - i t s so quiet, so w e l l made, so efficient, so economical ' y o u probably take it for granted. If y o u haven't got one or need a n o t h e r - w r i t e to us and w e w i l l tell you all about this full range and the accessories. If y o u hâve any special requirements, then d o n ' t hesitate to call on Techne's accumulated k n o w - h o w .
... See it on
EASTERN
Movie Film!
ANALYTICAL SYMPOSIUM
Whether you attended the Symposium or not, see this interesting film that enables you to study the show and analyze your own booth and that of your competitors.
• 30 minute, professional 16 or 8 mm. color motion picture film of entire three day event. • Life-like coverage of every display, permanent record of your own show activities. • Shows personnel, equipment, demonstrations, etc. • Enables you to analyze the show in armchair comfort. COMPLETE 30 MINUTE COLOR MOTION PICTURE FILM—
16 mm.—$230.00 net, f.o.b. Phila., Pa. Foreign orders—cash 8 mm. Regular or Super 8—$57.50
and it comes in five sizes Techne Incorporated 661 Brunswick Pike Princeton N e w Jersey 0 8 5 4 0 Telephone ( 6 0 9 ) 4 5 2 - 9 2 7 5 Circle No. 43 on Readers' Service Card
30 MINUTE TAPE COMMENTARY
$25.00 Cartridge or Cassette $30.00 Write or Cal
PHILIP SADTLER SCIENTIFIC SERVICES 3555 W. School House Lane, Phila., Pa. 19144 Phone: (215) 843-3326
Advantages ol our deluxe variable auto-transformers definitely outweigh the additional cost.
Circle No. 41 on Readers' Service Card
Available from leading distributors —
Non-Metered Model
Metered Model
Isolated Model
Fully Metered Model
All STACO Deluxe Variables feature: • Convenient carrying handle • Circuit breaker (no fuse) • Line cord w/NEMA grounded plug, receptacle • Neon pilot light • 3 position range selection switch • Available with or without metering • U.L. and C.S.A. approved • 2 Year Warranty Staco's new laboratory series DELUXE VARIABLE autotransformers cost a slight bit more than most plug-in types; but then you get more for your money. Staco's new series has circuit breaker with automatic reset, permanent etched legends, convenience outlet, housed in a handsome stylish enclosure and is truly portable with a convenient carrying handle. Metered models include voltmeter with optional ammeter and/or wattmeter; equipped with isolated AC and DC outputs. Models: 1.75 amperes to 16 amperes output. Contact your local distributor or write the factory for full details:
120 A
·
Circle No. 129 on Readers' Service Card ANALYTICAL CHEMISTRY, VOL. 4 2 , NO. 1, J A N U A R Y 1 9 7 0
STACO® INCORPORATED 2240 E. THIRD ST./DAYTON, 0. 45403 Telephone AC 513/253-1191