Happy_Hour said:
Anyone know why Tesoro used these numbers in that order.
I have no clue. I asked about it way-back-when, but if I got any answer, I don't remember it. Puzzled by the '4' -'6' - '7' choices myself.
The Deep Search IV didn't have the Battery Test in the Mode selector switch like the DS VI. Instead it had a simple push-button battery Test
The DS IV had the On/Off control tied in with the Sensitivity control, but the DS VI had the On/Off control incorporated with a variable Volume adjustment. The DS IV had the Volume preset at the maximum setting for best general performance.
Both the DS IV and DS VI came standard with a 7" search coil, and both had a retune pushbutton on the end of the hand grip.
The DS VII added the option to select Auto-tune or Normal [size=small](manual)[/size] retune. It also had a toggle in the front of the grip to select either the TR-Discriminate mode [size=small](toggle down)[/size] or the Ground Balanced All Metal mode [size=small](toggled up)[/size]. Additionally, it came standard with an 8" search coil.
The IV then VI then VII identifications were used to define the model's progression with increased design features, but how the numerals were decided upon is a mystery to me as well.
Happy_Hour said:
The Tesoro metal detector chronology is:
1980: Deep Search VI, Deep Search IV, Deep Search VII
1981: Aztec, Cortes, Amigo
1982: Scout, Mayan
1983: Inca, Silver Sabre
1984: Sabre II, Sabre Supreme, Silver Turtle
1985: Golden Sabre, Cutlass
1986: Silver Sabre Plus, Eldorado, Royal Sabre
1987: Toltec 100
1988: Toltec 80, Diablo, 4 Reale, 8 Reale
1989: Golden Sabre Plus
True, the Pillar Electronics Reale's were made for them by Tesoro, and there were only two models, but I believe the quote you made is from a former MDI or other material done by James when he was around, but he should have researched his own material mode because there was no 8 Reale.
The "entry-level" or turn-on-and-go model was the 1 Reale and the more versatile model, with manual GB, was the 4 Reale. The Pillar 1 Reale & 4 Reale were released in early-to-mid 1989, There were some "Field Tests" on the 4 Reale in 'Treasure' Vol. 20 No.11 Nov. 1989 Pg.57 [size=small](if you have one laying around)[/size], and in Western & Eastern Treasure Vol.24 No.1, January 1990, Pg.49 [size=small](I'm not sure but I might still have that one on-hand)[/size].
The 1 Reale was a modified Silver Sabre, and the one I preferred, the 4 Reale was based on the 'original' Eldorado.
They operated at 11 kHz, and their stock coil was a solid 8" Concentric design.
It was an interesting concept, a unique rod/housing configuration, and because they were a 'Tesoro,' they performed well.
I don't know why James couldn't remember the proper models numbers for the two Pillar units, just like I have no idea why Jack settled on the Deep Search models numbers.
Monte